8 316 989 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 4 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
66535913	8	26.0	old
249509671	9	27.9	2008-09-08 04:30:13
4241664391	10	32.0	2008-09-08 04:30:13
23620248761	11	34.5	2008-09-08 04:30:13

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-13	Oliver Kruse	4B8ADF3FE1C8C2C3	4	6639756	5	3
Verified	PRP without proof (not generated)	2020-04-19	Luigi Morelli	4B8ADF3FE1C8C2C3	4	7447090	5	3

History

Date	User	Type	Result
2024-03-06	Stef42	NF-PM1	B1=3000000, B2=5767417110
2020-04-19	Luigi Morelli	C-PRP	M8316989/66535913/249509671/4241664391/23620248761 : 4B8ADF3FE1C8C2C3
2018-10-13	Oliver Kruse	C-PRP	M8316989/66535913/249509671/4241664391/23620248761 : 4B8ADF3FE1C8C2C3
2008-09-08	Will Edgington	F	Factor: 23620248761
2008-09-08	Will Edgington	F	Factor: 4241664391
2008-09-08	Will Edgington	F	Factor: 249509671