8 321 591 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
771061978879	12	39.5	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-10	_p95holder_	84FD976CDCD623E8	1	1098713	5	3
Verified	PRP without proof (not generated)	2020-04-20	arnaud	84FD976CDCD623E8	1	2233714	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1375000, B2=2788626750
2020-04-20	arnaud	C-PRP	M8321591/771061978879 : 84FD976CDCD623E8
2018-10-10	_p95holder_	C-PRP	M8321591/771061978879 : 84FD976CDCD623E8

Username
Password