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
2946337Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
19033337031030.8old
ECM
DigitsB1Curves
2550000106 / 280
Estimated T-Level: 21.9
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-25Oliver KruseDE58F292DBD60BC01215222653
Verified2017-12-09kkmrkkblmbrbkDE58F292DBD60BC01129022153
History
DateUserTypeResult
2023-02-11USAFSSNF-PM1
B1=360000, B2=282695490
2017-12-09kkmrkkblmbrbkC-PRP
M2946337/1903333703 : DE58F292DBD60BC0
PRP: Verified
PRP without proof (not generated)
2017-10-25Oliver KruseC-PRP
M2946337/1903333703 : DE58F292DBD60BC0
PRP: Verified
PRP without proof (not generated)