8 020 381 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
384978289	9	28.5	old
514090958805433	15	48.9	2008-09-08 03:44:16

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-11	_p95holder_	316B4570227D5233	2	5050435	5	3
Verified	2020-01-02	arnaud	316B4570227D5233	2	7317006	5	3

History

Date	User	Type	Result
2024-02-24	Stef42	NF-PM1	B1=937000, B2=1792472220
2020-01-02	arnaud	C-PRP	M8020381/384978289/514090958805433 : 316B4570227D5233 PRP: Verified PRP without proof (not generated)
2018-07-11	_p95holder_	C-PRP	M8020381/384978289/514090958805433 : 316B4570227D5233 PRP: Verified PRP without proof (not generated)
2008-09-08	Will Edgington	F	Factor: 514090958805433