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
4754459Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
667621132791136.0old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk68295A0354E934C71013
Verified2018-03-16Cubox68295A0354E934C71234111813
History
DateUserTypeResult
2023-10-04USAFSSNF-PM1
B1=240000, B2=91991760
2018-03-16CuboxC-PRP
M4754459/66762113279 : 68295A0354E934C7
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M4754459/66762113279 : 68295A0354E934C7
PRP: Verified
PRP without proof (not generated)