Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnDetails
8111161
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 269
TF target 267
Factored
FactorDigitsBitsDate
3106041705864190971858.1old
1085166828061376026792166.62020-05-21 10:17:19
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2018-08-16Oliver Kruse6BE0BE761167B9BB1348716753
Factored
PRP without proof (not generated)
2020-02-07oodaira6BE0BE761167B9BB1566715153
Verified
PRP without proof (not generated)
2020-06-06Justine V.6BE0BE761167B9BB2360650153
History
DateUserTypeResult
2023-01-04FlaukrotistNFno factor TF: 68-69
2022-08-06FlaukrotistNF-PM1B1=2200000, B2=1908376140
2022-02-15FlaukrotistNFno factor TF: 67-68
2020-06-06Justine V.C-PRPM8111161/310604170586419097/108516682806137602679 : 6BE0BE761167B9BB
2020-05-21TJAOIFFactor: 108516682806137602679
2020-02-07oodairaC-PRPM8111161/310604170586419097 : 6BE0BE761167B9BB
2018-08-16Oliver KruseC-PRPM8111161/310604170586419097 : 6BE0BE761167B9BB
1998-08-24-anonymous-FFactor: 310604170586419097