8 001 491 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
400074551	9	28.6	old
86835845014879	14	46.3	2008-09-08 03:43:43

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-04	_p95holder_	F0FB56E31537095D	2	2358679	5	3
Verified	2019-12-26	GAN	F0FB56E31537095D	2	701100	5	3

History

Date	User	Type	Result
2024-02-24	Stef42	NF-PM1	B1=875000, B2=1756495650
2019-12-26	GAN	C-PRP	M8001491/400074551/86835845014879 : F0FB56E31537095D PRP: Verified PRP without proof (not generated)
2018-07-04	_p95holder_	C-PRP	M8001491/400074551/86835845014879 : F0FB56E31537095D PRP: Verified PRP without proof (not generated)
2008-09-08	Will Edgington	F	Factor: 86835845014879