Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
8056313Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4677656454071238.8old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-07-21_p95holder_10CFD924A55D931B1420057853
Verified2020-01-14daveward200510CFD924A55D931B1495350753
History
DateUserTypeResult
2024-02-26Stef42NF-PM1
B1=937000, B2=1792472220
2020-01-14daveward2005C-PRP
M8056313/467765645407 : 10CFD924A55D931B
PRP: Verified
PRP without proof (not generated)
2018-07-21_p95holder_C-PRP
M8056313/467765645407 : 10CFD924A55D931B
PRP: Verified
PRP without proof (not generated)