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
7779371Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
84490192556811342.9old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-05-14_p95holder_F2213C19816258351309908653
Verified2019-09-29marssystemsF2213C19816258351672328653
History
DateUserTypeResult
2024-01-30Stef42NF-PM1
B1=875000, B2=2044750890
2019-09-29marssystemsC-PRP
M7779371/8449019255681 : F2213C1981625835
PRP: Verified
PRP without proof (not generated)
2018-05-14_p95holder_C-PRP
M7779371/8449019255681 : F2213C1981625835
PRP: Verified
PRP without proof (not generated)