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
4370929Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
8933994065778719291859.6old
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
Verified2017-09-20kkmrkkblmbrbk1690F96D0A1ABC9F1013
Verified2018-02-04trebor1690F96D0A1ABC9F1169218113
History
DateUserTypeResult
2023-05-03USAFSSNF-PM1
B1=448000, B2=251346810
2018-02-04treborC-PRP
M4370929/893399406577871929 : 1690F96D0A1ABC9F
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M4370929/893399406577871929 : 1690F96D0A1ABC9F
PRP: Verified
PRP without proof (not generated)