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
6957107Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
55656857825.7old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-01-23Chang Chia-Tche95CB3F32B9F90CE71529113053
Verified2019-02-09ATH95CB3F32B9F90CE71334489153
History
DateUserTypeResult
2023-12-30Stef42NF-PM1
B1=577000, B2=1280664000
2019-02-09ATHC-PRP
M6957107/55656857 : 95CB3F32B9F90CE7
PRP: Verified
PRP without proof (not generated)
2018-01-23Chang Chia-TcheC-PRP
M6957107/55656857 : 95CB3F32B9F90CE7
PRP: Verified
PRP without proof (not generated)