8 321 081 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
3661275641	10	31.8	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-08	ATH	548E6596F1DCFF1D	1	1572127	5	3
Verified	PRP without proof (not generated)	2020-04-20	arnaud	548E6596F1DCFF1D	1	7159621	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1375000, B2=2725257990
2020-04-20	arnaud	C-PRP	M8321081/3661275641 : 548E6596F1DCFF1D
2018-10-08	ATH	C-PRP	M8321081/3661275641 : 548E6596F1DCFF1D

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