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

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MnStatusDetails
2999231Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
169148710430171443.9old
ECM
DigitsB1Curves
2550000113 / 280
Estimated T-Level: 22.0
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-27Oliver KruseC96E27AEE992E5371209852953
Verified2017-12-10kkmrkkblmbrbkC96E27AEE992E5371200209153
History
DateUserTypeResult
2023-03-01USAFSSNF-PM1
B1=360000, B2=249019650
2022-01-13JossNF
no factor from 2^67 to 2^68
2017-12-10kkmrkkblmbrbkC-PRP
M2999231/16914871043017 : C96E27AEE992E537
PRP: Verified
PRP without proof (not generated)
2017-10-27Oliver KruseC-PRP
M2999231/16914871043017 : C96E27AEE992E537
PRP: Verified
PRP without proof (not generated)