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
2952553Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
33245746791031.6old
31582563695470871651.52014-06-29 11:25:27
ECM
DigitsB1Curves
255000097 / 280
Estimated T-Level: 21.7
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-25Oliver Kruse80544D9345EAA2E725921953
Verified2017-12-09kkmrkkblmbrbk80544D9345EAA2E72172591853
History
DateUserTypeResult
2023-02-12USAFSSNF-PM1
B1=360000, B2=298405800
2017-12-09kkmrkkblmbrbkC-PRP
M2952553/3324574679/3158256369547087 : 80544D9345EAA2E7
PRP: Verified
PRP without proof (not generated)
2017-10-25Oliver KruseC-PRP
M2952553/3324574679/3158256369547087 : 80544D9345EAA2E7
PRP: Verified
PRP without proof (not generated)
2014-06-29TJAOIF
Factor: 3158256369547087