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
2952863Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
5905727722.5old
181779486482471444.02008-09-30 14:38:34
1520473985522630411857.12015-05-22 11:18:03
ECM
DigitsB1Curves
2550000126 / 280
Estimated T-Level: 22.3
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-25Oliver Kruse3578D842F0534E123245428153
Verified2017-12-09kkmrkkblmbrbk3578D842F0534E123752253
History
DateUserTypeResult
2023-02-12USAFSSNF-PM1
B1=360000, B2=298405800
2017-12-09kkmrkkblmbrbkC-PRP
M2952863/5905727/18177948648247/152047398552263041 : 3578D842F0534E12
PRP: Verified
PRP without proof (not generated)
2017-10-25Oliver KruseC-PRP
M2952863/5905727/18177948648247/152047398552263041 : 3578D842F0534E12
PRP: Verified
PRP without proof (not generated)
2015-05-22TJAOIF
Factor: 152047398552263041 / TF: 57-58
2008-09-30markrF
Factor: 18177948648247