Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
12401489Factored
FactorDigitsBitsDate
776829270971136.2old
13173357675371340.32008-09-08 08:31:30
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-26XZT202382A3224715752522998453
History
DateUserTypeResult
2022-05-26VikkiMtFCERT
PRP Certification
Proof certified good
2022-05-26XZTC-PRP
M12401489/77682927097/1317335767537 : 202382A322471575
PRP proof power = 8
PRP: Verified
Proof certified good
2022-03-20nordiNF-PM1
B1=400000, B2=266243250
2022-03-09nordiNF-PM1
B1=400000
2008-09-08Will EdgingtonF
Factor: 1317335767537