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

PrimeNet Exponent Status

Exponent Range:





MnDetails
8319947
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
420445253569818411755.2old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-08ATH9FC528B82C44D76F1328869153
Verified
PRP without proof (not generated)
2020-04-18marssystems9FC528B82C44D76F1148133753
History
DateUserTypeResult
2024-06-10Stef42NF-PM1B1=1375000, B2=2725257990
2020-04-18marssystemsC-PRPM8319947/42044525356981841 : 9FC528B82C44D76F
2018-10-08ATHC-PRPM8319947/42044525356981841 : 9FC528B82C44D76F
1998-09-06-anonymous-FFactor: 42044525356981841