7 828 111 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
90401859604183	14	46.4	old
39968302275259961	17	55.1	2015-01-09 15:14:02

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-05-21	_p95holder_	217840339F03E120	2	1868643	5	3
Verified	2019-10-17	marssystems	217840339F03E120	2	6333397	5	3

History

Date	User	Type	Result
2024-02-06	Stef42	NF-PM1	B1=859000, B2=1382772300
2019-10-17	marssystems	C-PRP	M7828111/90401859604183/39968302275259961 : 217840339F03E120 PRP: Verified PRP without proof (not generated)
2018-05-21	_p95holder_	C-PRP	M7828111/90401859604183/39968302275259961 : 217840339F03E120 PRP: Verified PRP without proof (not generated)
2015-01-09	TJAOI	F	Factor: 39968302275259961 / TF: 55-56