8 333 531 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
664922653591241041	18	59.2	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-12	ATH	8A58A55BC0D7C72D	1	6028509	5	3
Verified	PRP without proof (not generated)	2020-04-23	oodaira	8A58A55BC0D7C72D	1	5824318	5	3

History

Date	User	Type	Result
2024-05-10	Stef42	NF-PM1	B1=1025000, B2=1519818300
2020-04-23	oodaira	C-PRP	M8333531/664922653591241041 : 8A58A55BC0D7C72D
2018-10-12	ATH	C-PRP	M8333531/664922653591241041 : 8A58A55BC0D7C72D
1998-09-06	-anonymous-	F	Factor: 664922653591241041

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