7 915 877 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
110822279	9	26.7	old
471878456300328697	18	58.7	2015-09-25 11:27:43

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-06-09	_p95holder_	BCB1B2B87B12B6FB	2	4911388	5	3
Verified	2019-11-18	marssystems	BCB1B2B87B12B6FB	2	6869886	5	3

History

Date	User	Type	Result
2024-02-05	Stef42	NF-PM1	B1=950000, B2=1968826860
2019-11-18	marssystems	C-PRP	M7915877/110822279/471878456300328697 : BCB1B2B87B12B6FB PRP: Verified PRP without proof (not generated)
2018-06-09	_p95holder_	C-PRP	M7915877/110822279/471878456300328697 : BCB1B2B87B12B6FB PRP: Verified PRP without proof (not generated)
2015-09-25	TJAOI	F	Factor: 471878456300328697 / TF: 58-59