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
8319881
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
264704668305531444.6old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-08Chang Chia-Tche8DA970EA489122F01301756753
Verified
PRP without proof (not generated)
2020-04-18marssystems8DA970EA489122F01770627653
History
DateUserTypeResult
2024-06-10Stef42NF-PM1B1=1375000, B2=2725257990
2020-04-18marssystemsC-PRPM8319881/26470466830553 : 8DA970EA489122F0
2018-10-08Chang Chia-TcheC-PRPM8319881/26470466830553 : 8DA970EA489122F0