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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MnStatusDetails
2967689Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
23741513824.5old
89030671826.42008-09-07 19:43:10
ECM
DigitsB1Curves
255000060 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-26Oliver Kruse097301B491CF60752129157353
Verified2017-12-09kkmrkkblmbrbk097301B491CF60752277180653
History
DateUserTypeResult
2023-02-18USAFSSNF-PM1
B1=360000, B2=298405800
2017-12-09kkmrkkblmbrbkC-PRP
M2967689/23741513/89030671 : 097301B491CF6075
PRP: Verified
PRP without proof (not generated)
2017-10-26Oliver KruseC-PRP
M2967689/23741513/89030671 : 097301B491CF6075
PRP: Verified
PRP without proof (not generated)
2008-09-07Will EdgingtonF
Factor: 89030671