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
2948009Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
443072675037275111755.3old
ECM
DigitsB1Curves
255000078 / 280
Estimated T-Level: 21.4
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-25Oliver Kruse34E20E5FD8FBFF9C1277459653
Verified2017-12-09kkmrkkblmbrbk34E20E5FD8FBFF9C165180853
History
DateUserTypeResult
2023-02-11USAFSSNF-PM1
B1=360000, B2=282695490
2017-12-09kkmrkkblmbrbkC-PRP
M2948009/44307267503727511 : 34E20E5FD8FBFF9C
PRP: Verified
PRP without proof (not generated)
2017-10-25Oliver KruseC-PRP
M2948009/44307267503727511 : 34E20E5FD8FBFF9C
PRP: Verified
PRP without proof (not generated)