Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
2926769Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
8309389867911239.6old
19040539193538891650.82014-06-09 13:28:06
ECM
DigitsB1Curves
255000057 / 280
Estimated T-Level: 21.0
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-25Oliver Kruse930ABDDB7099A6C02219723053
Verified2017-12-09kkmrkkblmbrbk930ABDDB7099A6C02254823353
History
DateUserTypeResult
2023-02-06USAFSSNF-PM1
B1=360000, B2=282695490
2017-12-09kkmrkkblmbrbkC-PRP
M2926769/830938986791/1904053919353889 : 930ABDDB7099A6C0
PRP: Verified
PRP without proof (not generated)
2017-10-25Oliver KruseC-PRP
M2926769/830938986791/1904053919353889 : 930ABDDB7099A6C0
PRP: Verified
PRP without proof (not generated)
2014-06-09TJAOIF
Factor: 1904053919353889