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
8328311
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
66626489826.0old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-15Oliver KruseF1D1F123ABF328021497505853
Verified
PRP without proof (not generated)
2020-04-21marssystemsF1D1F123ABF328021791957653
History
DateUserTypeResult
2024-06-10Stef42NF-PM1B1=1375000, B2=2788626750
2020-04-21marssystemsC-PRPM8328311/66626489 : F1D1F123ABF32802
2018-10-15Oliver KruseC-PRPM8328311/66626489 : F1D1F123ABF32802