6 908 521 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
95213236423	11	36.5	old
208747870537	12	37.6	2008-09-08 02:59:09
2075858573039	13	40.9	2008-09-30 21:53:48

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-01-19	trebor	FFB2CFE2A5559172	3	1997716	5	3
Verified	2019-01-22	kkmrkkblmbrbk	FFB2CFE2A5559172	3	907603	5	3

History

Date	User	Type	Result
2023-12-26	Stef42	NF-PM1	B1=569000, B2=1280664000
2019-01-22	kkmrkkblmbrbk	C-PRP	M6908521/95213236423/208747870537/2075858573039 : FFB2CFE2A5559172 PRP: Verified PRP without proof (not generated)
2018-01-19	trebor	C-PRP	M6908521/95213236423/208747870537/2075858573039 : FFB2CFE2A5559172 PRP: Verified PRP without proof (not generated)
2008-09-30	markr	F	Factor: 2075858573039
2008-09-08	Will Edgington	F	Factor: 208747870537