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

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MnStatusDetails
12509221Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1542136764891237.2old
108139463516391443.32008-09-08 08:33:32
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-04-12Oliver Kruse916B1FA95408B00221042370453
History
DateUserTypeResult
2022-04-12SteveCCERT
PRP Certification
Proof certified good
2022-04-12Oliver KruseC-PRP
M12509221/154213676489/10813946351639 : 916B1FA95408B002
PRP proof power = 8
PRP: Verified
Proof certified good
2022-04-07Lisander ViaeneNF
no factor from 2^67 to 2^68
2022-04-07Lisander ViaeneNF-PM1
B1=250000, B2=254029230
2008-09-08Will EdgingtonF
Factor: 10813946351639