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
2571733Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
15430399823.9old
ECM
DigitsB1Curves
2550000156 / 280
Estimated T-Level: 22.8
TF below 2^71 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-15Oliver Kruse4DEA91CCB2D656FF1219965253
Verified2017-12-02nokno4544EADD26258E511013
Verified2017-12-02kkmrkkblmbrbk4DEA91CCB2D656FF129602653
Verified2017-12-05kkmrkkblmbrbk4544EADD26258E511106166213
History
DateUserTypeResult
2022-09-01USAFSSNF-PM1
B1=300000, B2=258641460
2017-12-05kkmrkkblmbrbkC-PRP
M2571733/15430399 : 4544EADD26258E51
PRP: Verified
PRP without proof (not generated)
2017-12-02kkmrkkblmbrbkC-PRP
M2571733/15430399 : 4DEA91CCB2D656FF
PRP: Verified
PRP without proof (not generated)
2017-12-02noknoC-PRP
M2571733/15430399 : 4544EADD26258E51
PRP: Verified
PRP without proof (not generated)
2017-10-15Oliver KruseC-PRP
M2571733/15430399 : 4DEA91CCB2D656FF
PRP: Verified
PRP without proof (not generated)