8 311 957 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
831630368056064671	18	59.5	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-06	rucio	6C5B39D717929A7A	1	1737869	5	3
Verified	PRP without proof (not generated)	2020-04-19	GAN	6C5B39D717929A7A	1	6626230	5	3

History

Date	User	Type	Result
2024-06-04	Stef42	NF-PM1	B1=1500000, B2=11222126370
2020-04-19	GAN	C-PRP	M8311957/831630368056064671 : 6C5B39D717929A7A
2018-10-06	rucio	C-PRP	M8311957/831630368056064671 : 6C5B39D717929A7A
1999-02-07	-anonymous-	F	Factor: 831630368056064671
1999-01-29	Lars Fricke	F	Factor: 831630368056064671

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