8 050 187 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
402509351	9	28.6	old
401108617463	12	38.5	2008-09-08 04:23:11

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-23	_p95holder_	431C00DE0176ABD4	2	3819895	5	3
Verified	2020-01-10	oodaira	431C00DE0176ABD4	2	1569016	5	3

History

Date	User	Type	Result
2024-02-25	Stef42	NF-PM1	B1=944000, B2=1792472220
2020-01-10	oodaira	C-PRP	M8050187/402509351/401108617463 : 431C00DE0176ABD4 PRP: Verified PRP without proof (not generated)
2018-07-23	_p95holder_	C-PRP	M8050187/402509351/401108617463 : 431C00DE0176ABD4 PRP: Verified PRP without proof (not generated)
2008-09-08	Will Edgington	F	Factor: 401108617463