CRUS Top 20 Page
Last update: Mon 25 Nov 2024 16:30 CST
Script created by Vassilis Modes with updates by Mark Rodenkirch
Based on pages compiled by Gary Barnes
Top 20 Unproven Conjectures by N
Top 20 Unproven Conjectures by Decimal Length
Top 20 Conjectures with 1k Remaining by Highest Weight
Top 20 Conjectures with 1k Remaining by Lowest Weight
Top 20 Conjectures Tested to at least n=10K by Highest Conjectured k
Top 20 Conjectures Tested to at least n=100K by Highest Conjectured k
Top 20 Conjectures Tested to at least n=10K by Most Remaining k
Top 20 Conjectures Tested to at least n=100K by Most Remaining k
Top 20 Conjectures with 1k Remaining by Highest Conjectured k
Top 20 Conjectures with 1k Remaining by Lowest Conjectured k
Top 20 Conjectures with 2k Remaining by Highest Conjectured k
Top 20 Conjectures with 2k Remaining by Lowest Conjectured k
Top 20 Conjectures with 3k Remaining by Highest Conjectured k
Top 20 Conjectures with 3k Remaining by Lowest Conjectured k
Color legend: |
reserved by a user |
reserved by a project |
reserved by a user and a project |
some k reserved, some k available |
all k available |
Top 20 Unproven Conjectures by N
Riesel | Sierpinski |
Base |
CK |
Count of k Remaining |
Tested N |
Test Limit |
Mininum Decimal Length |
2 | 509203 | 43 | 10M | 10000000 | 3010300 |
2 odd-n | 172677 | 4 | 10M | 10000000 | 3010300 |
2 even-n | 39939 | 2 | 10M | 10000000 | 3010300 |
6 | 84687 | 1 | 8.013M | 8013000 | 6235326 |
2 2nd-c | 762701 | 24 | 8M | 8000000 | 2408240 |
4 | 39939 | 5 | 5M | 5000000 | 3010300 |
27 | 804 | 1 | 5M | 5000000 | 7156819 |
22 | 4461 | 1 | 5M | 5000000 | 6712114 |
10 | 10176 | 1 | 5M | 5000000 | 5000001 |
5 | 346802 | 52 | 4.9M | 4900000 | 3424954 |
31 | 134718 | 1 | 3M | 3000000 | 4474086 |
23 | 476 | 1 | 3M | 3000000 | 4085184 |
366 | 2109 | 1 | 2M | 2000000 | 5126963 |
16 | 33965 | 14 | 2M | 2000000 | 2408240 |
1025 | 20 | 1 | 1.075M | 1075000 | 3236529 |
967 | 408 | 1 | 1M | 1000000 | 2985427 |
94 | 39 | 1 | 1M | 1000000 | 1973128 |
93 | 612 | 1 | 1M | 1000000 | 1968483 |
80 | 253 | 2 | 1M | 1000000 | 1903090 |
800 | 88 | 1 | 1M | 1000000 | 2903090 |
|
Base |
CK |
Count of k Remaining |
Tested N |
Test Limit |
Mininum Decimal Length |
2 | 78557 | 5 | 42.2M | 42200000 | 12703466 |
2 odd-n | 95283 | 3 | 10M | 10000000 | 3010300 |
2 2nd-c | 271129 | 17 | 10M | 10000000 | 3010300 |
4 | 66741 | 6 | 5M | 5000000 | 3010300 |
17 | 278 | 1 | 5M | 5000000 | 6152245 |
10 | 9175 | 1 | 5M | 5000000 | 5000001 |
5 | 159986 | 28 | 4.9M | 4900000 | 3424954 |
6 | 174308 | 10 | 4M | 4000000 | 3112606 |
27 | 538 | 1 | 3M | 3000000 | 4294092 |
22 | 6694 | 1 | 2.8M | 2800000 | 3758784 |
26 | 221 | 2 | 2M | 2000000 | 2829947 |
155 | 14 | 1 | 1.875M | 1875000 | 4106872 |
75 | 4086 | 1 | 1.3M | 1300000 | 2437580 |
468 | 202 | 1 | 1.3M | 1300000 | 3471320 |
212 | 70 | 4 | 1.3M | 1300000 | 3024237 |
128 | 44 | 1 | 1.2857M | 1285700 | 2709240 |
87 | 274 | 1 | 1M | 1000000 | 1939520 |
875 | 74 | 1 | 1M | 1000000 | 2942009 |
86 | 28 | 1 | 1M | 1000000 | 1934499 |
853 | 204 | 1 | 1M | 1000000 | 2930950 |
|
Top 20 Unproven Conjectures by Decimal Length
Riesel | Sierpinski |
Base |
CK |
Count of k Remaining |
Tested N |
Test Limit |
Mininum Decimal Length |
27 | 804 | 1 | 5M | 5000000 | 7156819 |
22 | 4461 | 1 | 5M | 5000000 | 6712114 |
6 | 84687 | 1 | 8.013M | 8013000 | 6235326 |
366 | 2109 | 1 | 2M | 2000000 | 5126963 |
10 | 10176 | 1 | 5M | 5000000 | 5000001 |
31 | 134718 | 1 | 3M | 3000000 | 4474086 |
23 | 476 | 1 | 3M | 3000000 | 4085184 |
5 | 346802 | 52 | 4.9M | 4900000 | 3424954 |
1025 | 20 | 1 | 1.075M | 1075000 | 3236529 |
1029 | 104 | 1 | 1M | 1000000 | 3012416 |
4 | 39939 | 5 | 5M | 5000000 | 3010300 |
2 | 509203 | 43 | 10M | 10000000 | 3010300 |
2 odd-n | 172677 | 4 | 10M | 10000000 | 3010300 |
2 even-n | 39939 | 2 | 10M | 10000000 | 3010300 |
1024 | 81 | 1 | 1M | 1000000 | 3010300 |
967 | 408 | 1 | 1M | 1000000 | 2985427 |
800 | 88 | 1 | 1M | 1000000 | 2903090 |
746 | 34 | 1 | 1M | 1000000 | 2872739 |
712 | 185 | 1 | 1M | 1000000 | 2852480 |
636 | 27 | 1 | 1M | 1000000 | 2803458 |
|
Base |
CK |
Count of k Remaining |
Tested N |
Test Limit |
Mininum Decimal Length |
2 | 78557 | 5 | 42.2M | 42200000 | 12703466 |
17 | 278 | 1 | 5M | 5000000 | 6152245 |
10 | 9175 | 1 | 5M | 5000000 | 5000001 |
27 | 538 | 1 | 3M | 3000000 | 4294092 |
155 | 14 | 1 | 1.875M | 1875000 | 4106872 |
22 | 6694 | 1 | 2.8M | 2800000 | 3758784 |
468 | 202 | 1 | 1.3M | 1300000 | 3471320 |
5 | 159986 | 28 | 4.9M | 4900000 | 3424954 |
6 | 174308 | 10 | 4M | 4000000 | 3112606 |
212 | 70 | 4 | 1.3M | 1300000 | 3024237 |
4 | 66741 | 6 | 5M | 5000000 | 3010300 |
2 odd-n | 95283 | 3 | 10M | 10000000 | 3010300 |
2 2nd-c | 271129 | 17 | 10M | 10000000 | 3010300 |
875 | 74 | 1 | 1M | 1000000 | 2942009 |
853 | 204 | 1 | 1M | 1000000 | 2930950 |
740 | 14 | 1 | 1M | 1000000 | 2869232 |
26 | 221 | 2 | 2M | 2000000 | 2829947 |
578 | 68 | 3 | 1M | 1000000 | 2761928 |
520 | 1006 | 1 | 1M | 1000000 | 2716004 |
512 | 18 | 1 | 1M | 1000000 | 2709270 |
|
Top 20 Conjectures with 1k Remaining by Highest Weight
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Weight |
Tested N |
Test Limit |
Mininum Decimal Length |
123 | 154 | 24 | 2758 | 1M | 1000000 | 2089906 |
332 | 38 | 18 | 2502 | 800K | 800000 | 2016911 |
31 | 134718 | 55758 | 2309 | 3M | 3000000 | 4474086 |
702 | 75 | 32 | 2216 | 600K | 600000 | 1707803 |
879 | 34 | 24 | 2118 | 600K | 600000 | 1766394 |
496 | 638 | 57 | 2063 | 600K | 600000 | 1617290 |
730 | 171 | 170 | 1976 | 600K | 600000 | 1717994 |
505 | 714 | 68 | 1919 | 600K | 600000 | 1621975 |
581 | 98 | 2 | 1856 | 600K | 600000 | 1658506 |
233 | 14 | 10 | 1843 | 1M | 1000000 | 2367356 |
636 | 27 | 9 | 1758 | 1M | 1000000 | 2803458 |
181 | 300 | 168 | 1739 | 1M | 1000000 | 2257679 |
109 | 144 | 84 | 1732 | 1M | 1000000 | 2037427 |
253 | 1904 | 1854 | 1666 | 1M | 1000000 | 2403121 |
800 | 88 | 8 | 1652 | 1M | 1000000 | 2903090 |
326 | 110 | 50 | 1642 | 800K | 800000 | 2010575 |
133 | 3684 | 926 | 1570 | 1M | 1000000 | 2123852 |
967 | 408 | 242 | 1509 | 1M | 1000000 | 2985427 |
611 | 118 | 10 | 1494 | 600K | 600000 | 1671625 |
275 | 22 | 4 | 1472 | 1M | 1000000 | 2439333 |
|
Base |
CK |
List of Remaining k |
Weight |
Tested N |
Test Limit |
Mininum Decimal Length |
781 | 528 | 370 | 2853 | 600K | 600000 | 1735591 |
914 | 4 | 2 | 2107 | 400K | 400000 | 1184379 |
379 | 246 | 156 | 2052 | 1M | 1000000 | 2578640 |
864 | 174 | 74 | 2012 | 600K | 600000 | 1761909 |
256 | 1221 | 831 | 1999 | 1M | 1000000 | 2408240 |
148 | 4471 | 2361 | 1810 | 1M | 1000000 | 2170262 |
935 | 14 | 10 | 1795 | 400K | 400000 | 1188325 |
155 | 14 | 4 | 1738 | 1.875M | 1875000 | 4106872 |
784 | 156 | 151 | 1697 | 600K | 600000 | 1736590 |
402 | 92 | 61 | 1665 | 600K | 600000 | 1562536 |
605 | 100 | 70 | 1614 | 618K | 618000 | 1719125 |
1009 | 304 | 144 | 1607 | 400K | 400000 | 1201557 |
724 | 204 | 9 | 1573 | 600K | 600000 | 1715844 |
417 | 56 | 10 | 1569 | 1M | 1000000 | 2620137 |
720 | 104 | 13 | 1521 | 600K | 600000 | 1714400 |
520 | 1006 | 369 | 1487 | 1M | 1000000 | 2716004 |
968 | 16 | 11 | 1470 | 400K | 400000 | 1194351 |
294 | 119 | 61 | 1440 | 1M | 1000000 | 2468348 |
736 | 133 | 12 | 1431 | 600K | 600000 | 1720127 |
883 | 324 | 66 | 1390 | 600K | 600000 | 1767577 |
|
Top 20 Conjectures with 1k Remaining by Lowest Weight
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Weight |
Tested N |
Test Limit |
Mininum Decimal Length |
6 | 84687 | 1597 | 272 | 8.013M | 8013000 | 6235326 |
318 | 144 | 122 | 309 | 1M | 1000000 | 2502428 |
458 | 16 | 11 | 343 | 800K | 800000 | 2128693 |
347 | 28 | 22 | 402 | 1M | 1000000 | 2540330 |
67 | 3144 | 2228 | 440 | 1M | 1000000 | 1826075 |
958 | 174 | 8 | 441 | 815K | 815000 | 2429813 |
373 | 74 | 18 | 452 | 600K | 600000 | 1543026 |
712 | 185 | 47 | 474 | 1M | 1000000 | 2852480 |
867 | 92 | 8 | 475 | 600K | 600000 | 1762812 |
610 | 753 | 234 | 519 | 600K | 600000 | 1671198 |
10 | 10176 | 4421 | 571 | 5M | 5000000 | 5000001 |
23 | 476 | 404 | 580 | 3M | 3000000 | 4085184 |
549 | 34 | 6 | 610 | 600K | 600000 | 1643744 |
662 | 14 | 7 | 638 | 600K | 600000 | 1692515 |
688 | 105 | 9 | 641 | 600K | 600000 | 1702554 |
533 | 88 | 74 | 690 | 600K | 600000 | 1636037 |
398 | 8 | 7 | 761 | 600K | 600000 | 1559930 |
160 | 183 | 116 | 769 | 1M | 1000000 | 2204120 |
27 | 804 | 706 | 770 | 5M | 5000000 | 7156819 |
743 | 32 | 14 | 770 | 600K | 600000 | 1722594 |
|
Base |
CK |
List of Remaining k |
Weight |
Tested N |
Test Limit |
Mininum Decimal Length |
75 | 4086 | 1312 | 221 | 1.3M | 1300000 | 2437580 |
304 | 121 | 60 | 228 | 1M | 1000000 | 2482874 |
227 | 20 | 18 | 242 | 1M | 1000000 | 2356026 |
10 | 9175 | 7666 | 263 | 5M | 5000000 | 5000001 |
182 | 23 | 8 | 269 | 1M | 1000000 | 2260072 |
263 | 10 | 8 | 298 | 1M | 1000000 | 2419956 |
17 | 278 | 244 | 334 | 5M | 5000000 | 6152245 |
87 | 274 | 32 | 342 | 1M | 1000000 | 1939520 |
259 | 144 | 64 | 391 | 1M | 1000000 | 2413300 |
428 | 10 | 8 | 397 | 1M | 1000000 | 2631444 |
140 | 46 | 8 | 435 | 1M | 1000000 | 2146129 |
866 | 16 | 8 | 440 | 600K | 600000 | 1762511 |
401 | 68 | 20 | 456 | 1M | 1000000 | 2603145 |
430 | 22413 | 15321 | 483 | 600K | 600000 | 1580082 |
638 | 70 | 32 | 497 | 600K | 600000 | 1682893 |
758 | 10 | 8 | 501 | 600K | 600000 | 1727802 |
828 | 12 | 8 | 529 | 600K | 600000 | 1750819 |
22 | 6694 | 5128 | 534 | 2.8M | 2800000 | 3758784 |
373 | 120 | 108 | 547 | 700K | 700000 | 1800197 |
917 | 16 | 2 | 549 | 600K | 600000 | 1777422 |
|
Top 20 Conjectures Tested to at least n=10K by Highest Conjectured k
Riesel | Sierpinski |
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
3 | 63064644938 | 98855 | 100K | 100000 | 47713 |
63 | 187258666 | 177330 | 25K | 25000 | 44984 |
66 | 101954772 | 59600 | 25K | 25000 | 45489 |
715 | 9745298 | 6332 | 10K | 10000 | 28544 |
51 | 8632534 | 10432 | 25K | 25000 | 42690 |
561 | 5975464 | 5018 | 10K | 10000 | 27490 |
651 | 4965144 | 6754 | 10K | 10000 | 28136 |
124 | 3730449 | 54450 | 10K | 10000 | 20935 |
201 | 3669230 | 9769 | 25K | 25000 | 57580 |
385 | 3449490 | 2214 | 25K | 25000 | 64637 |
40 | 3386517 | 1117 | 100K | 100000 | 160206 |
126 | 2767077 | 4532 | 25K | 25000 | 52510 |
130 | 2443673 | 4115 | 25K | 25000 | 52849 |
196 | 2215067 | 1992 | 25K | 25000 | 57307 |
427 | 2080614 | 8895 | 10K | 10000 | 26305 |
79 | 1965996 | 4993 | 100K | 100000 | 189763 |
705 | 1881842 | 8804 | 10K | 10000 | 28482 |
391 | 1820454 | 4989 | 10K | 10000 | 25922 |
106 | 1626615 | 590 | 100K | 100000 | 202531 |
673 | 1617938 | 8104 | 10K | 10000 | 28281 |
|
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
3 | 125050976086 | 369597 | 50K | 50000 | 23857 |
63 | 37565868 | 33446 | 25K | 25000 | 44984 |
66 | 21314443 | 8840 | 50K | 50000 | 90978 |
1015 | 12079606 | 21816 | 10K | 10000 | 30065 |
375 | 7509988 | 24381 | 10K | 10000 | 25741 |
31 | 6360528 | 503 | 100K | 100000 | 149137 |
561 | 6290186 | 5249 | 10K | 10000 | 27490 |
51 | 5183582 | 3972 | 100K | 100000 | 170758 |
201 | 4613782 | 15594 | 10K | 10000 | 23032 |
651 | 4541342 | 6340 | 10K | 10000 | 28136 |
385 | 3301264 | 2070 | 25K | 25000 | 64637 |
190 | 3146151 | 4749 | 10K | 10000 | 22788 |
196 | 2730222 | 2518 | 25K | 25000 | 57307 |
420 | 2288555 | 3958 | 50K | 50000 | 131163 |
79 | 2212516 | 5594 | 100K | 100000 | 189763 |
180 | 1679679 | 11737 | 10K | 10000 | 22553 |
361 | 1671172 | 5510 | 10K | 10000 | 25576 |
547 | 1658658 | 5063 | 10K | 10000 | 27380 |
226 | 1547460 | 8041 | 10K | 10000 | 23542 |
267 | 1343016 | 3728 | 25K | 25000 | 60663 |
|
Top 20 Conjectures Tested to at least n=100K by Highest Conjectured k
Riesel | Sierpinski |
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
3 | 63064644938 | 98855 | 100K | 100000 | 47713 |
40 | 3386517 | 1117 | 100K | 100000 | 160206 |
79 | 1965996 | 4993 | 100K | 100000 | 189763 |
106 | 1626615 | 590 | 100K | 100000 | 202531 |
39 | 1352534 | 2134 | 100K | 100000 | 159107 |
19 | 1119866 | 947 | 100K | 100000 | 127876 |
2 2nd-c | 762701 | 24 | 8M | 8000000 | 2408240 |
190 | 626861 | 274 | 100K | 100000 | 227876 |
2 | 509203 | 43 | 10M | 10000000 | 3010300 |
331 | 470030 | 486 | 100K | 100000 | 251983 |
151 | 349922 | 365 | 320K | 320000 | 697273 |
5 | 346802 | 52 | 4.9M | 4900000 | 3424954 |
25 | 346802 | 75 | 600K | 600000 | 838765 |
595 | 291890 | 91 | 100K | 100000 | 277452 |
35 | 287860 | 418 | 100K | 100000 | 154407 |
316 | 287520 | 175 | 100K | 100000 | 249969 |
145 | 257324 | 120 | 100K | 100000 | 216137 |
91 | 229058 | 26 | 500K | 500000 | 979521 |
255 | 205022 | 287 | 100K | 100000 | 240655 |
2 odd-n | 172677 | 4 | 10M | 10000000 | 3010300 |
|
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
31 | 6360528 | 503 | 100K | 100000 | 149137 |
51 | 5183582 | 3972 | 100K | 100000 | 170758 |
79 | 2212516 | 5594 | 100K | 100000 | 189763 |
40 | 826477 | 238 | 100K | 100000 | 160206 |
19 | 765174 | 525 | 200K | 200000 | 255751 |
106 | 495090 | 184 | 100K | 100000 | 202531 |
145 | 430482 | 264 | 100K | 100000 | 216137 |
222 | 389359 | 1235 | 100K | 100000 | 234636 |
96 | 353081 | 387 | 100K | 100000 | 198228 |
595 | 301128 | 90 | 100K | 100000 | 277452 |
316 | 287520 | 145 | 100K | 100000 | 249969 |
331 | 280458 | 253 | 100K | 100000 | 251983 |
2 2nd-c | 271129 | 17 | 10M | 10000000 | 3010300 |
771 | 264218 | 202 | 100K | 100000 | 288706 |
25 | 262638 | 64 | 800K | 800000 | 1118353 |
231 | 251748 | 95 | 100K | 100000 | 236362 |
35 | 214018 | 325 | 100K | 100000 | 154407 |
391 | 206662 | 247 | 100K | 100000 | 259218 |
78 | 186123 | 120 | 100K | 100000 | 189210 |
105 | 181632 | 51 | 100K | 100000 | 202119 |
|
Top 20 Conjectures Tested to at least n=10K by Most Remaining k
Riesel | Sierpinski |
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
63 | 187258666 | 177330 | 25K | 25000 | 44984 |
3 | 63064644938 | 98855 | 100K | 100000 | 47713 |
66 | 101954772 | 59600 | 25K | 25000 | 45489 |
124 | 3730449 | 54450 | 10K | 10000 | 20935 |
1012 | 946143 | 16389 | 10K | 10000 | 30052 |
624 | 569819 | 11967 | 10K | 10000 | 27952 |
51 | 8632534 | 10432 | 25K | 25000 | 42690 |
913 | 1368714 | 9928 | 10K | 10000 | 29605 |
201 | 3669230 | 9769 | 25K | 25000 | 57580 |
427 | 2080614 | 8895 | 10K | 10000 | 26305 |
705 | 1881842 | 8804 | 10K | 10000 | 28482 |
1008 | 623563 | 8556 | 10K | 10000 | 30035 |
933 | 389944 | 8116 | 10K | 10000 | 29699 |
673 | 1617938 | 8104 | 10K | 10000 | 28281 |
478 | 370268 | 7571 | 10K | 10000 | 26795 |
847 | 1357806 | 7298 | 10K | 10000 | 29279 |
651 | 4965144 | 6754 | 10K | 10000 | 28136 |
955 | 1333860 | 6724 | 10K | 10000 | 29801 |
763 | 925778 | 6594 | 10K | 10000 | 28826 |
276 | 1552307 | 6374 | 10K | 10000 | 24410 |
|
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
3 | 125050976086 | 369597 | 50K | 50000 | 23857 |
63 | 37565868 | 33446 | 25K | 25000 | 44984 |
375 | 7509988 | 24381 | 10K | 10000 | 25741 |
1015 | 12079606 | 21816 | 10K | 10000 | 30065 |
201 | 4613782 | 15594 | 10K | 10000 | 23032 |
180 | 1679679 | 11737 | 10K | 10000 | 22553 |
478 | 523069 | 10650 | 10K | 10000 | 26795 |
822 | 278173 | 10255 | 10K | 10000 | 29149 |
831 | 1030522 | 9525 | 10K | 10000 | 29197 |
508 | 601128 | 8875 | 10K | 10000 | 27059 |
66 | 21314443 | 8840 | 50K | 50000 | 90978 |
895 | 953800 | 8532 | 10K | 10000 | 29519 |
226 | 1547460 | 8041 | 10K | 10000 | 23542 |
651 | 4541342 | 6340 | 10K | 10000 | 28136 |
990 | 838385 | 5923 | 10K | 10000 | 29957 |
79 | 2212516 | 5594 | 100K | 100000 | 189763 |
607 | 420034 | 5572 | 10K | 10000 | 27832 |
361 | 1671172 | 5510 | 10K | 10000 | 25576 |
561 | 6290186 | 5249 | 10K | 10000 | 27490 |
547 | 1658658 | 5063 | 10K | 10000 | 27380 |
|
Top 20 Conjectures Tested to at least n=100K by Most Remaining k
Riesel | Sierpinski |
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
3 | 63064644938 | 98855 | 100K | 100000 | 47713 |
79 | 1965996 | 4993 | 100K | 100000 | 189763 |
39 | 1352534 | 2134 | 100K | 100000 | 159107 |
40 | 3386517 | 1117 | 100K | 100000 | 160206 |
19 | 1119866 | 947 | 100K | 100000 | 127876 |
106 | 1626615 | 590 | 100K | 100000 | 202531 |
331 | 470030 | 486 | 100K | 100000 | 251983 |
35 | 287860 | 418 | 100K | 100000 | 154407 |
223 | 54704 | 402 | 100K | 100000 | 234831 |
151 | 349922 | 365 | 320K | 320000 | 697273 |
877 | 50654 | 307 | 100K | 100000 | 294300 |
786 | 37209 | 303 | 100K | 100000 | 289543 |
255 | 205022 | 287 | 100K | 100000 | 240655 |
207 | 38572 | 280 | 100K | 100000 | 231598 |
190 | 626861 | 274 | 100K | 100000 | 227876 |
672 | 41440 | 261 | 100K | 100000 | 282737 |
222 | 88530 | 258 | 100K | 100000 | 234636 |
58 | 105788 | 255 | 100K | 100000 | 176343 |
882 | 25606 | 253 | 100K | 100000 | 294547 |
858 | 24053 | 249 | 100K | 100000 | 293349 |
|
Base |
CK |
Count of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
79 | 2212516 | 5594 | 100K | 100000 | 189763 |
51 | 5183582 | 3972 | 100K | 100000 | 170758 |
222 | 389359 | 1235 | 100K | 100000 | 234636 |
19 | 765174 | 525 | 200K | 200000 | 255751 |
31 | 6360528 | 503 | 100K | 100000 | 149137 |
262 | 110724 | 469 | 100K | 100000 | 241831 |
96 | 353081 | 387 | 100K | 100000 | 198228 |
95 | 41354 | 365 | 100K | 100000 | 197773 |
366 | 79231 | 357 | 100K | 100000 | 256349 |
971 | 14876 | 342 | 100K | 100000 | 298722 |
772 | 23191 | 342 | 100K | 100000 | 288762 |
35 | 214018 | 325 | 100K | 100000 | 154407 |
431 | 20138 | 316 | 100K | 100000 | 263448 |
927 | 28624 | 310 | 100K | 100000 | 296708 |
215 | 19924 | 304 | 100K | 100000 | 233244 |
513 | 45828 | 279 | 100K | 100000 | 271012 |
808 | 24271 | 267 | 100K | 100000 | 290742 |
145 | 430482 | 264 | 100K | 100000 | 216137 |
292 | 40393 | 262 | 100K | 100000 | 246539 |
39 | 166134 | 259 | 100K | 100000 | 159107 |
|
Top 20 Conjectures with 1k Remaining by Highest Conjectured k
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
31 | 134718 | 55758 | 3M | 3000000 | 4474086 |
6 | 84687 | 1597 | 8.013M | 8013000 | 6235326 |
10 | 10176 | 4421 | 5M | 5000000 | 5000001 |
22 | 4461 | 3656 | 5M | 5000000 | 6712114 |
133 | 3684 | 926 | 1M | 1000000 | 2123852 |
67 | 3144 | 2228 | 1M | 1000000 | 1826075 |
366 | 2109 | 1747 | 2M | 2000000 | 5126963 |
253 | 1904 | 1854 | 1M | 1000000 | 2403121 |
103 | 1158 | 924 | 1M | 1000000 | 2012838 |
736 | 870 | 560 | 600K | 600000 | 1720127 |
27 | 804 | 706 | 5M | 5000000 | 7156819 |
610 | 753 | 234 | 600K | 600000 | 1671198 |
505 | 714 | 68 | 600K | 600000 | 1621975 |
496 | 638 | 57 | 600K | 600000 | 1617290 |
93 | 612 | 424 | 1M | 1000000 | 1968483 |
469 | 516 | 422 | 600K | 600000 | 1602704 |
333 | 502 | 16 | 1M | 1000000 | 2522445 |
23 | 476 | 404 | 3M | 3000000 | 4085184 |
967 | 408 | 242 | 1M | 1000000 | 2985427 |
163 | 372 | 254 | 1M | 1000000 | 2212188 |
|
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
430 | 22413 | 15321 | 600K | 600000 | 1580082 |
70 | 11077 | 10438 | 1M | 1000000 | 1845099 |
10 | 9175 | 7666 | 5M | 5000000 | 5000001 |
22 | 6694 | 5128 | 2.8M | 2800000 | 3758784 |
148 | 4471 | 2361 | 1M | 1000000 | 2170262 |
75 | 4086 | 1312 | 1.3M | 1300000 | 2437580 |
112 | 3502 | 1696 | 1M | 1000000 | 2049219 |
165 | 2974 | 1252 | 1M | 1000000 | 2217484 |
43 | 2256 | 166 | 1M | 1000000 | 1633469 |
117 | 2184 | 1474 | 1M | 1000000 | 2068186 |
217 | 1854 | 1356 | 1M | 1000000 | 2336460 |
256 | 1221 | 831 | 1M | 1000000 | 2408240 |
520 | 1006 | 369 | 1M | 1000000 | 2716004 |
27 | 538 | 398 | 3M | 3000000 | 4294092 |
781 | 528 | 370 | 600K | 600000 | 1735591 |
850 | 369 | 252 | 600K | 600000 | 1757652 |
816 | 343 | 153 | 600K | 600000 | 1747015 |
883 | 324 | 66 | 600K | 600000 | 1767577 |
340 | 309 | 199 | 1M | 1000000 | 2531479 |
1009 | 304 | 144 | 400K | 400000 | 1201557 |
|
Top 20 Conjectures with 1k Remaining by Lowest Conjectured k
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
1019 | 4 | 2 | 600K | 600000 | 1804905 |
398 | 8 | 7 | 600K | 600000 | 1559930 |
548 | 13 | 7 | 600K | 600000 | 1643269 |
812 | 13 | 4 | 600K | 600000 | 1745734 |
233 | 14 | 10 | 1M | 1000000 | 2367356 |
662 | 14 | 7 | 600K | 600000 | 1692515 |
668 | 14 | 11 | 600K | 600000 | 1694866 |
458 | 16 | 11 | 800K | 800000 | 2128693 |
968 | 16 | 4 | 600K | 600000 | 1791526 |
1025 | 20 | 8 | 1.075M | 1075000 | 3236529 |
275 | 22 | 4 | 1M | 1000000 | 2439333 |
321 | 22 | 8 | 800K | 800000 | 2005205 |
551 | 22 | 10 | 600K | 600000 | 1644691 |
636 | 27 | 9 | 1M | 1000000 | 2803458 |
173 | 28 | 22 | 1M | 1000000 | 2238047 |
347 | 28 | 22 | 1M | 1000000 | 2540330 |
695 | 28 | 26 | 600K | 600000 | 1705191 |
782 | 28 | 14 | 600K | 600000 | 1735925 |
743 | 32 | 14 | 600K | 600000 | 1722594 |
836 | 32 | 8 | 600K | 600000 | 1753324 |
|
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
1004 | 4 | 2 | 600K | 600000 | 1801041 |
914 | 4 | 2 | 400K | 400000 | 1184379 |
174 | 6 | 4 | 1M | 1000000 | 2240550 |
230 | 8 | 4 | 1M | 1000000 | 2361728 |
335 | 8 | 4 | 1M | 1000000 | 2525045 |
461 | 8 | 2 | 600K | 600000 | 1598221 |
467 | 8 | 4 | 1M | 1000000 | 2669317 |
263 | 10 | 8 | 1M | 1000000 | 2419956 |
428 | 10 | 8 | 1M | 1000000 | 2631444 |
758 | 10 | 8 | 600K | 600000 | 1727802 |
828 | 12 | 8 | 600K | 600000 | 1750819 |
155 | 14 | 4 | 1.875M | 1875000 | 4106872 |
740 | 14 | 13 | 1M | 1000000 | 2869232 |
935 | 14 | 10 | 400K | 400000 | 1188325 |
353 | 16 | 8 | 700K | 700000 | 1783443 |
497 | 16 | 8 | 600K | 600000 | 1617814 |
803 | 16 | 4 | 600K | 600000 | 1742830 |
866 | 16 | 8 | 600K | 600000 | 1762511 |
917 | 16 | 2 | 600K | 600000 | 1777422 |
968 | 16 | 11 | 400K | 400000 | 1194351 |
|
Top 20 Conjectures with 2k Remaining by Highest Conjectured k
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
2 even-n | 39939 | 9519, 14361 | 10M | 10000000 | 3010300 |
61 | 13484 | 9642, 10572 | 1M | 1000000 | 1785330 |
70 | 6176 | 1776, 2202 | 1M | 1000000 | 1845099 |
217 | 4688 | 1376, 2642 | 500K | 500000 | 1168230 |
931 | 3960 | 1854, 3812 | 400K | 400000 | 1187580 |
112 | 3843 | 1662, 3327 | 600K | 600000 | 1229531 |
162 | 3259 | 2118, 2841 | 500K | 500000 | 1104758 |
315 | 900 | 64, 552 | 500K | 500000 | 1249156 |
667 | 834 | 288, 344 | 500K | 500000 | 1412063 |
471 | 750 | 302, 408 | 500K | 500000 | 1336511 |
463 | 668 | 216, 356 | 500K | 500000 | 1332791 |
436 | 645 | 162, 344 | 500K | 500000 | 1319744 |
288 | 613 | 339, 509 | 500K | 500000 | 1229697 |
406 | 593 | 260, 297 | 500K | 500000 | 1304264 |
409 | 534 | 284, 344 | 500K | 500000 | 1305862 |
370 | 531 | 188, 405 | 500K | 500000 | 1284101 |
1003 | 396 | 252, 318 | 300K | 300000 | 900391 |
945 | 386 | 42, 302 | 400K | 400000 | 1190173 |
337 | 378 | 38, 222 | 500K | 500000 | 1263815 |
281 | 328 | 38, 314 | 500K | 500000 | 1224354 |
|
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
28 | 4554 | 871, 4552 | 1M | 1000000 | 1447159 |
49 | 2944 | 1414, 1456 | 1M | 1000000 | 1690197 |
315 | 1642 | 550, 836 | 500K | 500000 | 1249156 |
157 | 1344 | 1174, 1228 | 1M | 1000000 | 2195900 |
463 | 1188 | 616, 1072 | 500K | 500000 | 1332791 |
228 | 1146 | 327, 915 | 500K | 500000 | 1178968 |
507 | 1142 | 380, 984 | 500K | 500000 | 1352504 |
30 | 867 | 278, 588 | 1M | 1000000 | 1477122 |
376 | 610 | 246, 298 | 500K | 500000 | 1287594 |
703 | 538 | 354, 474 | 300K | 300000 | 854087 |
859 | 474 | 136, 250 | 300K | 300000 | 880198 |
835 | 474 | 94, 276 | 300K | 300000 | 876506 |
958 | 412 | 48, 363 | 400K | 400000 | 1192547 |
433 | 342 | 118, 264 | 500K | 500000 | 1318244 |
365 | 304 | 2, 176 | 500K | 500000 | 1281147 |
770 | 256 | 8, 11 | 500K | 500000 | 1443246 |
766 | 235 | 58, 222 | 300K | 300000 | 865269 |
790 | 225 | 127, 160 | 300K | 300000 | 869289 |
26 | 221 | 65, 155 | 2M | 2000000 | 2829947 |
510 | 218 | 57, 195 | 500K | 500000 | 1353786 |
|
Top 20 Conjectures with 2k Remaining by Lowest Conjectured k
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
887 | 38 | 22, 26 | 300K | 300000 | 884378 |
737 | 40 | 14, 22 | 717K | 717000 | 2055975 |
158 | 52 | 29, 44 | 500K | 500000 | 1099329 |
774 | 61 | 25, 30 | 300K | 300000 | 866623 |
602 | 68 | 58, 66 | 500K | 500000 | 1389799 |
803 | 68 | 14, 52 | 300K | 300000 | 871415 |
218 | 74 | 53, 59 | 500K | 500000 | 1169229 |
497 | 82 | 14, 56 | 500K | 500000 | 1348179 |
588 | 94 | 3, 16 | 500K | 500000 | 1384689 |
320 | 106 | 73, 103 | 500K | 500000 | 1252575 |
534 | 106 | 29, 59 | 500K | 500000 | 1363771 |
980 | 110 | 10, 31 | 400K | 400000 | 1196491 |
564 | 114 | 39, 86 | 500K | 500000 | 1375640 |
298 | 116 | 27, 92 | 500K | 500000 | 1237109 |
380 | 128 | 50, 79 | 500K | 500000 | 1289892 |
439 | 144 | 44, 120 | 500K | 500000 | 1321233 |
828 | 144 | 64, 68 | 300K | 300000 | 875410 |
447 | 148 | 78, 118 | 500K | 500000 | 1325154 |
941 | 158 | 92, 112 | 400K | 400000 | 1189436 |
814 | 164 | 44, 128 | 300K | 300000 | 873188 |
|
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
395 | 10 | 4, 8 | 500K | 500000 | 1298299 |
593 | 10 | 4, 8 | 500K | 500000 | 1386528 |
620 | 22 | 12, 13 | 500K | 500000 | 1396196 |
542 | 32 | 2, 13 | 500K | 500000 | 1367000 |
993 | 36 | 6, 8 | 520K | 520000 | 1558414 |
332 | 38 | 4, 16 | 700K | 700000 | 1764797 |
887 | 38 | 16, 34 | 300K | 300000 | 884378 |
530 | 58 | 14, 52 | 500K | 500000 | 1362138 |
774 | 61 | 6, 19 | 300K | 300000 | 866623 |
334 | 66 | 4, 51 | 500K | 500000 | 1261874 |
832 | 69 | 36, 67 | 500K | 500000 | 1460062 |
236 | 80 | 53, 67 | 500K | 500000 | 1186457 |
472 | 87 | 21, 67 | 500K | 500000 | 1336971 |
533 | 88 | 38, 64 | 500K | 500000 | 1363364 |
800 | 88 | 61, 82 | 500K | 500000 | 1451545 |
688 | 105 | 54, 103 | 500K | 500000 | 1418795 |
564 | 114 | 68, 79 | 500K | 500000 | 1375640 |
107 | 122 | 38, 68 | 1M | 1000000 | 2029384 |
634 | 126 | 75, 106 | 500K | 500000 | 1401045 |
380 | 128 | 64, 85 | 500K | 500000 | 1289892 |
|
Top 20 Conjectures with 3k Remaining by Highest Conjectured k
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
319 | 1526 | 614, 1356, 1506 | 500K | 500000 | 1251896 |
172 | 1262 | 219, 387, 1140 | 500K | 500000 | 1117765 |
1001 | 1168 | 70, 170, 994 | 300K | 300000 | 900131 |
520 | 1128 | 324, 576, 1094 | 500K | 500000 | 1358002 |
526 | 900 | 125, 273, 630 | 500K | 500000 | 1360493 |
601 | 818 | 300, 482, 744 | 300K | 300000 | 833663 |
327 | 696 | 38, 204, 370 | 810K | 810000 | 2036784 |
816 | 343 | 18, 113, 204 | 300K | 300000 | 873508 |
798 | 339 | 188, 283, 307 | 300K | 300000 | 870601 |
648 | 237 | 21, 186, 188 | 500K | 500000 | 1405788 |
984 | 196 | 99, 119, 191 | 300K | 300000 | 897899 |
590 | 196 | 98, 109, 152 | 500K | 500000 | 1385427 |
892 | 189 | 48, 96, 170 | 400K | 400000 | 1180146 |
987 | 170 | 58, 94, 118 | 300K | 300000 | 898296 |
893 | 148 | 22, 44, 94 | 300K | 300000 | 885256 |
410 | 136 | 47, 58, 64 | 500K | 500000 | 1306392 |
720 | 104 | 20, 27, 83 | 300K | 300000 | 857200 |
920 | 103 | 53, 61, 76 | 500K | 500000 | 1481894 |
446 | 74 | 13, 55, 64 | 500K | 500000 | 1324668 |
424 | 69 | 18, 21, 44 | 500K | 500000 | 1313683 |
|
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
2 odd-n | 95283 | 9267, 32247, 53133 | 10M | 10000000 | 3010300 |
37 | 2604 | 94, 1272, 2224 | 1M | 1000000 | 1568202 |
100 | 2469 | 433, 922, 2145 | 1M | 1000000 | 2000001 |
133 | 1944 | 88, 1138, 1336 | 500K | 500000 | 1061926 |
985 | 900 | 526, 666, 766 | 500K | 500000 | 1496719 |
249 | 824 | 436, 684, 706 | 500K | 500000 | 1198100 |
811 | 552 | 252, 450, 538 | 300K | 300000 | 872707 |
945 | 386 | 186, 296, 320 | 400K | 400000 | 1190173 |
191 | 302 | 52, 68, 172 | 500K | 500000 | 1140517 |
754 | 301 | 99, 159, 199 | 300K | 300000 | 863212 |
102 | 293 | 122, 178, 236 | 500K | 500000 | 1004301 |
922 | 285 | 30, 138, 214 | 400K | 400000 | 1185893 |
716 | 238 | 106, 121, 166 | 300K | 300000 | 856474 |
873 | 208 | 116, 150, 206 | 400K | 400000 | 1176406 |
942 | 206 | 40, 137, 139 | 400K | 400000 | 1189621 |
573 | 204 | 106, 132, 202 | 500K | 500000 | 1379078 |
504 | 201 | 79, 94, 116 | 500K | 500000 | 1351216 |
984 | 196 | 129, 160, 194 | 300K | 300000 | 897899 |
892 | 187 | 46, 93, 151 | 500K | 500000 | 1475183 |
443 | 184 | 8, 22, 94 | 500K | 500000 | 1323202 |
|
Top 20 Conjectures with 3k Remaining by Lowest Conjectured k
Riesel | Sierpinski |
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
452 | 59 | 11, 43, 52 | 500K | 500000 | 1327570 |
424 | 69 | 18, 21, 44 | 500K | 500000 | 1313683 |
446 | 74 | 13, 55, 64 | 500K | 500000 | 1324668 |
920 | 103 | 53, 61, 76 | 500K | 500000 | 1481894 |
720 | 104 | 20, 27, 83 | 300K | 300000 | 857200 |
410 | 136 | 47, 58, 64 | 500K | 500000 | 1306392 |
893 | 148 | 22, 44, 94 | 300K | 300000 | 885256 |
987 | 170 | 58, 94, 118 | 300K | 300000 | 898296 |
892 | 189 | 48, 96, 170 | 400K | 400000 | 1180146 |
590 | 196 | 98, 109, 152 | 500K | 500000 | 1385427 |
984 | 196 | 99, 119, 191 | 300K | 300000 | 897899 |
648 | 237 | 21, 186, 188 | 500K | 500000 | 1405788 |
798 | 339 | 188, 283, 307 | 300K | 300000 | 870601 |
816 | 343 | 18, 113, 204 | 300K | 300000 | 873508 |
327 | 696 | 38, 204, 370 | 810K | 810000 | 2036784 |
601 | 818 | 300, 482, 744 | 300K | 300000 | 833663 |
526 | 900 | 125, 273, 630 | 500K | 500000 | 1360493 |
520 | 1128 | 324, 576, 1094 | 500K | 500000 | 1358002 |
1001 | 1168 | 70, 170, 994 | 300K | 300000 | 900131 |
172 | 1262 | 219, 387, 1140 | 500K | 500000 | 1117765 |
|
Base |
CK |
List of Remaining k |
Tested N |
Test Limit |
Mininum Decimal Length |
878 | 23 | 2, 13, 17 | 400K | 400000 | 1177398 |
368 | 40 | 8, 12, 34 | 500K | 500000 | 1282924 |
788 | 40 | 14, 16, 38 | 300K | 300000 | 868958 |
422 | 46 | 8, 13, 17 | 500K | 500000 | 1312657 |
578 | 68 | 17, 31, 38 | 1M | 1000000 | 2761928 |
842 | 68 | 13, 19, 31 | 400K | 400000 | 1170125 |
710 | 80 | 8, 47, 52 | 300K | 300000 | 855378 |
767 | 80 | 4, 16, 52 | 700K | 700000 | 2019357 |
947 | 80 | 2, 34, 68 | 400K | 400000 | 1190540 |
290 | 98 | 73, 88, 91 | 500K | 500000 | 1231199 |
872 | 98 | 19, 46, 68 | 400K | 400000 | 1176207 |
905 | 118 | 62, 68, 88 | 400K | 400000 | 1182660 |
647 | 124 | 2, 74, 100 | 300K | 300000 | 843272 |
761 | 128 | 16, 32, 92 | 300K | 300000 | 864416 |
392 | 130 | 23, 94, 103 | 500K | 500000 | 1296644 |
354 | 141 | 12, 75, 134 | 500K | 500000 | 1274502 |
978 | 177 | 21, 43, 144 | 300K | 300000 | 897102 |
443 | 184 | 8, 22, 94 | 500K | 500000 | 1323202 |
892 | 187 | 46, 93, 151 | 500K | 500000 | 1475183 |
984 | 196 | 129, 160, 194 | 300K | 300000 | 897899 |
|
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