7 828 087 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
1407067325903	13	40.4	old
6471448210553	13	42.6	2008-09-30 23:49:18

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-05-18	_p95holder_	121208F44CEBCB56	2	2774442	5	3
Verified	2019-10-17	kkmrkkblmbrbk	121208F44CEBCB56	2	3865406	5	3

History

Date	User	Type	Result
2024-02-06	Stef42	NF-PM1	B1=859000, B2=1382772300
2019-10-17	kkmrkkblmbrbk	C-PRP	M7828087/1407067325903/6471448210553 : 121208F44CEBCB56 PRP: Verified PRP without proof (not generated)
2018-05-18	_p95holder_	C-PRP	M7828087/1407067325903/6471448210553 : 121208F44CEBCB56 PRP: Verified PRP without proof (not generated)
2008-09-30	markr	F	Factor: 6471448210553