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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MnDetails
8331163
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
133298609927.0old
349908847928.42008-09-08 04:30:33
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-11rucioF251C858A23B77422328198853
Verified
PRP without proof (not generated)
2020-04-21ATHF251C858A23B77422612572253
History
DateUserTypeResult
2024-05-10Stef42NF-PM1B1=1025000, B2=1519818300
2020-04-21ATHC-PRPM8331163/133298609/349908847 : F251C858A23B7742
2018-10-11rucioC-PRPM8331163/133298609/349908847 : F251C858A23B7742
2008-09-08Will EdgingtonFFactor: 349908847