7 851 287 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
706615831	9	29.4	old

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-05-25	_p95holder_	EC9FBB3EEE3580E7	1	2380920	5	3
Verified	2019-10-24	ATH	EC9FBB3EEE3580E7	1	856205	5	3

History

Date	User	Type	Result
2024-01-30	Stef42	NF-PM1	B1=950000, B2=1968826860
2019-10-24	ATH	C-PRP	M7851287/706615831 : EC9FBB3EEE3580E7 PRP: Verified PRP without proof (not generated)
2018-05-25	_p95holder_	C-PRP	M7851287/706615831 : EC9FBB3EEE3580E7 PRP: Verified PRP without proof (not generated)

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