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

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MnStatusDetails
12806617Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
2017042177511237.6old
68986684455611342.62008-09-08 08:39:30
825228222241124485894060072686.12022-05-02 14:49:27
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-13XZTD4444B66D22BC8A0375332753
P-1 factors
DateFactorB1B2
2022-05-0282522822224112448589406007400000428459850
History
DateUserTypeResult
2022-05-13MicheCERT
PRP Certification
Proof certified good
2022-05-13XZTC-PRP
M12806617/201704217751/6898668445561/82522822224112448589406007 : D4444B66D22BC8A0
PRP proof power = 8
PRP: Verified
Proof certified good
2022-05-02nordiF-PM1
Factor: 82522822224112448589406007 / (P-1, B1=400000, B2=428459850)
2022-04-20nordiNF-PM1
B1=400000
2008-09-08Will EdgingtonF
Factor: 6898668445561