PRP Top - Top discoverers

Top discoverers by number of PRPs

Rank	Discoverer	Score
1	Tony Prest / Never Odd Or Even	103834
2	Stefano Morozzi	32965
3	Lelio R Paula	31241
4	Patrick De Geest	21218
5	Enzo Doria	13797
6	Syoichiro Yamada	13745
7	Robert Price	12169
8	Ray Chandler	8631
9	Paul Bourdelais	8124
10	David Broadhurst	7813
11	Gilbert Mozzo	4720
12	Milton L. Brown	3224
13	Donovan Johnson	3116
14	Serge Batalov	2910
15	Kimmo Herranen	2745
16	Mike Oakes	2437
17	Norbert Schneider	2305
18	Yves Minet	2220
19	Hans Havermann	1597
20	Bernardo Boncompagni	1489
21	Henri Lifchitz	965
22	Andrey Kulsha	801
23	Wayne Halsdorf	674
24	Makoto Morimoto	627
25	Jason Earls	614
26	Joe McLean	594
27	Jim Fougeron	580
28	Jens K. Andersen	573
29	Anatoly F. Selevich	475
30	Kenneth Egtved Pedersen	422
31	Robert Smith	374
32	Paul Underwood	336
33	Erik Branger	331
34	Jorge Menendez	280
35	Maksym Voznyy	271
36	Richard Fischer	225
37	Gary Barnes	170
38	Gary Chaffey	162
39	Ryan C Weaving	158
40	Markus Hiltbrunner	123
41	Eric Chen	113
42	Kevin Acres	109
43	Michael Porter	94
43	Harald Ritter	94
45	Jean-Louis Charton	93
45	Matt Stath	93
47	Jiahao He	91
48	Alfred Reich	86
49	Daniel Heuer	80
50	T. D. Noe	79
51	Sinkiti Sibata	71
51	Paul Leyland	71
53	Dmitry Domanov	68
54	Curtis Bright	61
55	Eric W. Weisstein	58
56	Sander Hoogendoorn	54
57	D.Broadhurst and W.Edgington	53
58	Michael Vang	52
59	Sujan Das	50
60	Renaud Lifchitz	49
61	Theodore Burton	45
61	Makoto Kamada	45
63	Mark Rodenkirch	44
63	Arkadiusz Wesolowski	44
65	Nicolas PALAU	43
66	Paul Vanderveen	39
66	Patrick Schmeer	39
68	Thomas Masser	36
69	Cletus Emmanuel	30
69	Pedja Terzic	30
71	Anonymous	28
72	Faysal YAtim	27
72	Harvey Dubner	27
74	Greg Childers	24
75	Paul Schmidt	23
76	Wojciech Florek	22
77	Gord Palameta	20
77	Danilo Nitsche	20
79	Kellen Shenton	19
79	Rob Binnekamp	19
79	Joel Levy	19
82	Predrag Minovic	18
82	Ken Davis	18
84	Bouk de Water	17
84	Robert Kinser	17
86	Harrison Mesh	15
87	Alex_soldier	14
87	Ryan Propper	14
89	Youcef Lemsafer	13
89	Thomas Ritschel	13
91	Nik Lygeros / Olivier Rozier	11
92	Raffi Chaglassian	10
92	Alexander Zhirkov	10
92	Gabor Levai	10
92	Marcin Lipinski	10
92	Michael Stocker	10
97	Tyler NeSmith	9
97	Alexander Kuzmich	9
97	Dario Alpern	9
97	Darren Bedwell	9
97	Kamil Duszenko	9
97	D. Broadhurst & B. de Water	9
103	Walter Nissen	8
103	Nik Lygeros / Olivier Rozier / LR team	8
103	Leonid Muraviov	8
103	Anton Vrba	8
103	M. Frind & P. Underwood	8
108	Jean Penné	7
108	Karsten Bonath	7
108	H.&R. Lifchitz	7
108	James G. Merickel	7
112	Ryan Propper + Sergey Batalov	6
112	Dirk Augustin	6
114	Pierre CAMI	5
114	Borys Jaworski	5
114	Payam Samidoost	5
114	Tom Wu	5
114	Marisa Kirisame	5
119	Anand Nair	4
119	V.M.Ulyanov	4
119	Dylan Delgado	4
119	Décio Gazzoni Filho	4
119	Marek Hubal	4
124	Akihiko Yoshida	3
124	D. Gazzoni Filho & Lucas Teixeira	3
124	Richard McIntosh	3
124	Paul Jobling	3
124	Giovanni Di Maria	3
124	Jiong Sun	3
124	Alexander Gramolin	3
124	Phil Moore	3
124	Jeppe Stig Nielsen	3
124	Harsh Aggarwal	3
124	Hugo Platzer	3
124	Matthias Baur	3
124	Meng-Hsuan Wu	3
124	Ben Maloney / Five or Bust	3
138	Michael Kwok	2
138	Ray Ballinger	2
138	Leonid Durman	2
138	Valeryi Kuryshev	2
138	Markus Tervooren	2
138	Rubén Blanco	2
138	Andy Klingeleers	2
138	Dmitry Kamenetsky	2
138	J. Alm & D. Johnson	2
138	Andy Steward	2
138	Lewis,Jobling,Nash	2
138	Ed Pegg	2
138	Miklos Levai	2
138	Engracio Esmenda / Five or Bust	2
138	Peter Lesala	2
138	Steven Harvey	2
138	Peter Liaskovsky	2
138	Ananda Tallur & Jean-Louis Charton	2
156	Tetsuya Kobayashi	1
156	Tony Reix / Diepeveen-Underwood -Reix	1
156	Vincent Diepeveen	1
156	Yusuf AttarBashi	1
156	Sean A. Irvine	1
156	Tyler Busby	1
156	Sergey Batalov	1
156	William Garnett	1
156	Tapashree & Jainam	1
156	Lew Baxter	1
156	Guido Smetrijns	1
156	Giovanni La Barbera	1
156	Göran Hemdal	1
156	Hugo Pfoertner	1
156	Jorge Coveiro	1
156	Jeff Gilchrist /Diepeveen-Reix-Underwood-Gilchrist	1
156	GIMPS-fre_games	1
156	Ed Trice	1
156	Cyclamen Persicum	1
156	Connor Deptuck	1
156	D.Broadhurst and M.Kamada	1
156	D.Broadhurst and N.Mandela	1
156	Ed T. Prothro	1
156	Dudley Fox	1
156	Kurt Beschorner	1
156	Leonardo Ottaviano	1
156	paolo galliani	1
156	Oliver Kruse	1
156	Paul Bourdelais, Harvey Dubner	1
156	Peter Kaiser	1
156	Polly T. Wang	1
156	Phil Carmody	1
156	Nuutti Kuosa	1
156	MohamedReda Kebbaj	1
156	Luke W. Richards	1
156	Adrian Bondrescu	1
156	Matthew Peets	1
156	Matthias Wurtinger	1
156	Michael Eaton	1
156	Richard FitzHugh	1

Top discoverers by production score^*

Rank	Discoverer	Score
1	Ryan Propper + Sergey Batalov	53.4436
2	Ryan Propper	52.2621
3	Paul Bourdelais	51.1292
4	Anonymous	50.9703
5	Jeff Gilchrist /Diepeveen-Reix-Underwood-Gilchrist	50.9036
6	Tony Prest / Never Odd Or Even	50.4224
7	GIMPS-fre_games	50.1446
8	Enzo Doria	49.9784
9	Engracio Esmenda / Five or Bust	49.8812
10	Gord Palameta	49.3233
11	Stefano Morozzi	49.1381
12	Oliver Kruse	49.0532
13	Serge Batalov	48.6832
14	Robert Price	48.5167
15	Hans Havermann	47.8671
16	Ben Maloney / Five or Bust	47.7568
17	Alfred Reich	47.5776
18	Lelio R Paula	47.4747
19	Gabor Levai	47.3664
20	Patrick De Geest	47.3245
21	Tony Reix / Diepeveen-Underwood -Reix	47.2269
22	Curtis Bright	47.1095
23	Nik Lygeros / Olivier Rozier / LR team	47.1065
24	Anand Nair	47.0205
25	Henri Lifchitz	46.8362
26	Makoto Morimoto	46.7970
27	Sergey Batalov	46.6330
27	Peter Kaiser	46.6330
29	Nik Lygeros / Olivier Rozier	46.5672
30	Jean-Louis Charton	46.4485
31	Alexander Zhirkov	46.0775
32	Yves Minet	45.9529
33	Kellen Shenton	45.8825
34	Borys Jaworski	45.7963
35	Norbert Schneider	45.7178
36	Mike Oakes	45.4811
37	Miklos Levai	45.2272
38	Michael Stocker	45.1413
39	Adrian Bondrescu	45.1328
40	Dario Alpern	44.9364
41	Jorge Coveiro	44.8701
42	Leonid Durman	44.5445
43	Erik Branger	44.5434
44	Maksym Voznyy	44.0643
45	Phil Moore	43.9356
46	Renaud Lifchitz	43.9182
47	Ray Chandler	43.7713
48	Yusuf AttarBashi	43.7152
49	Anatoly F. Selevich	43.6366
50	Jorge Menendez	43.4607
51	Danilo Nitsche	43.4553
52	Matthias Wurtinger	43.4236
53	Syoichiro Yamada	43.3093
54	paolo galliani	43.1908
55	Donovan Johnson	43.1363
56	Eric W. Weisstein	43.1286
57	Makoto Kamada	43.0673
58	Ed Trice	42.9402
59	Mark Rodenkirch	42.9159
60	Vincent Diepeveen	42.9031
61	Robert Smith	42.7237
62	Eric Chen	42.6983
63	Richard Fischer	42.5945
64	Thomas Ritschel	42.5917
65	Robert Kinser	42.5587
66	Alex_soldier	42.5456
67	Jens K. Andersen	42.4271
68	Milton L. Brown	42.4230
69	Gilbert Mozzo	42.3829
70	Luke W. Richards	42.2565
71	Markus Tervooren	42.2013
72	Harrison Mesh	42.1987
73	Kevin Acres	42.1267
74	Tyler NeSmith	42.1057
75	Alexander Gramolin	42.0680
76	Andy Steward	42.0678
77	Dmitry Domanov	41.9615
78	David Broadhurst	41.9510
79	Akihiko Yoshida	41.9008
80	Youcef Lemsafer	41.8956
81	Wayne Halsdorf	41.8768
82	Theodore Burton	41.8735
83	Matt Stath	41.8125
84	Paul Vanderveen	41.7967
85	Kimmo Herranen	41.7829
86	Karsten Bonath	41.7119
87	Nicolas PALAU	41.6474
88	Sujan Das	41.5708
89	Matthias Baur	41.5055
90	Michael Vang	41.5045
91	Joe McLean	41.4510
92	Jason Earls	41.4443
93	Cletus Emmanuel	41.3699
94	Paul Underwood	41.2942
95	Faysal YAtim	41.2683
96	Valeryi Kuryshev	41.2673
97	Gary Barnes	41.2070
98	Dylan Delgado	41.1947
99	Andrey Kulsha	41.1560
100	Payam Samidoost	41.1236
101	Jean Penné	41.0866
102	M. Frind & P. Underwood	41.0735
103	T. D. Noe	41.0112
104	Bernardo Boncompagni	40.6902
105	Darren Bedwell	40.5716
106	H.&R. Lifchitz	40.5526
107	Marek Hubal	40.5299
108	Michael Porter	40.4610
109	Tyler Busby	40.3952
110	Jiahao He	40.2751
111	Arkadiusz Wesolowski	40.0345
112	Marisa Kirisame	40.0015
113	Jim Fougeron	39.9920
114	Daniel Heuer	39.8964
115	Paul Bourdelais, Harvey Dubner	39.8282
116	Sander Hoogendoorn	39.8108
117	Jeppe Stig Nielsen	39.6131
118	D. Gazzoni Filho & Lucas Teixeira	39.6113
119	Predrag Minovic	39.5972
120	Wojciech Florek	39.5962
121	Ryan C Weaving	39.5308
122	Sinkiti Sibata	39.4834
123	Kurt Beschorner	39.3559
124	Dirk Augustin	39.2949
125	Kenneth Egtved Pedersen	39.1165
126	Lew Baxter	39.1057
127	Pedja Terzic	38.9591
128	Tapashree & Jainam	38.8360
129	Harald Ritter	38.8053
130	Patrick Schmeer	38.6236
131	Ananda Tallur & Jean-Louis Charton	38.5718
132	Walter Nissen	38.4704
133	James G. Merickel	38.4559
134	Gary Chaffey	38.4469
135	Thomas Masser	38.4129
136	Décio Gazzoni Filho	38.3716
137	D.Broadhurst and W.Edgington	38.3693
138	Peter Lesala	38.2364
139	Pierre CAMI	38.1880
140	Harsh Aggarwal	38.0889
141	Phil Carmody	38.0649
142	Jiong Sun	38.0187
143	Tom Wu	37.9657
144	Bouk de Water	37.7897
145	Kamil Duszenko	37.7572
146	Harvey Dubner	37.7421
147	Paul Leyland	37.7267
148	Connor Deptuck	37.7091
149	Markus Hiltbrunner	37.5011
150	Joel Levy	37.4885
151	Leonardo Ottaviano	37.4341
152	Meng-Hsuan Wu	37.2670
153	Greg Childers	37.2465
154	Raffi Chaglassian	37.1068
155	Marcin Lipinski	37.0378
156	Richard McIntosh	37.0213
157	Rob Binnekamp	36.9534
158	Paul Jobling	36.8410
159	Lewis,Jobling,Nash	36.6013
160	Ken Davis	36.4213
161	Rubén Blanco	36.3081
162	MohamedReda Kebbaj	36.2809
163	D.Broadhurst and N.Mandela	36.2365
164	D.Broadhurst and M.Kamada	36.2230
165	D. Broadhurst & B. de Water	36.2010
166	Steven Harvey	36.0407
167	Alexander Kuzmich	35.8876
168	Paul Schmidt	35.8030
169	Anton Vrba	35.6914
170	Dudley Fox	35.5339
171	William Garnett	35.2932
172	Peter Liaskovsky	35.1846
173	Ray Ballinger	35.1526
174	Dmitry Kamenetsky	34.9327
175	Matthew Peets	34.8243
176	Hugo Platzer	34.7951
177	V.M.Ulyanov	34.7788
178	Leonid Muraviov	34.7753
179	Giovanni Di Maria	34.5567
180	Cyclamen Persicum	34.5441
181	Ed Pegg	34.4014
182	Richard FitzHugh	34.1466
183	Michael Kwok	34.1355
184	Sean A. Irvine	34.0515
185	Ed T. Prothro	33.9358
186	Andy Klingeleers	33.8707
187	Nuutti Kuosa	33.7910
188	Michael Eaton	33.7691
189	Tetsuya Kobayashi	33.6073
190	J. Alm & D. Johnson	33.5636
191	Göran Hemdal	33.2857
192	Hugo Pfoertner	33.2269
193	Giovanni La Barbera	33.1670
194	Polly T. Wang	32.8241
195	Guido Smetrijns	32.7635

^* : See the "Prime Pages" by Chris K. Caldwell for explanations about the production score used.

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Created by Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: January, 15 2023 14:59 (Time in France)

PRP Top - Top discoverers

Top discoverers by number of PRPs

Top discoverers by production score*

Top discoverers by production score^*