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
7911413Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
25277890428549520331961.1old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-06-08_p95holder_E9A0B1A56703FAF11618214853
Verified2019-11-20Chang Chia-TcheE9A0B1A56703FAF11714617053
History
DateUserTypeResult
2024-02-04Stef42NF-PM1
B1=950000, B2=1968826860
2019-11-20Chang Chia-TcheC-PRP
M7911413/2527789042854952033 : E9A0B1A56703FAF1
PRP: Verified
PRP without proof (not generated)
2018-06-08_p95holder_C-PRP
M7911413/2527789042854952033 : E9A0B1A56703FAF1
PRP: Verified
PRP without proof (not generated)