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
4368079Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
629003377929.2old
54513625931032.32008-09-07 23:40:28
2632117043831237.92008-09-07 23:40:28
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
Verified2017-11-17Oliver KruseD9910EA7AA0D1F283158532153
Verified2017-12-31kkmrkkblmbrbkD9910EA7AA0D1F28366892853
History
DateUserTypeResult
2023-04-30USAFSSNF-PM1
B1=448000, B2=251346810
2017-12-31kkmrkkblmbrbkC-PRP
M4368079/629003377/5451362593/263211704383 : D9910EA7AA0D1F28
PRP: Verified
PRP without proof (not generated)
2017-11-17Oliver KruseC-PRP
M4368079/629003377/5451362593/263211704383 : D9910EA7AA0D1F28
PRP: Verified
PRP without proof (not generated)
2008-09-07Will EdgingtonF
Factor: 263211704383
2008-09-07Will EdgingtonF
Factor: 5451362593