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Result:
status (?)	digits	number
P	21441 (show)	(2^71216*3131-11)/15<21441> = 2963213984...47<21441>

More information

ECM

Primality proving
Proven by certificate
Size	28,193,979 bytes
Status	Verified
Created with	multiprecision.org/cm (0.4.1dev)
Uploaded by	Luminescence
Date	July 10, 2022, 4:49 am
Download	Download

Proof by N-1/N+1
N-1	(0.002% factored)
N+1	(0.084% factored)
Combined N-1/N+1-test	(0.086% factored)
Download helper file

Probable prime
Bases checked	2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61
Check base (2-255)

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