Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
2741201Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
358501392751295591755.0old
ECM
DigitsB1Curves
255000092 / 280
Estimated T-Level: 21.6
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-20Oliver Kruse60A6890DAA64366113893353
Verified2017-12-05kkmrkkblmbrbk60A6890DAA6436611189229753
History
DateUserTypeResult
2022-11-21USAFSSNF-PM1
B1=255000, B2=191586780
2017-12-05kkmrkkblmbrbkC-PRP
M2741201/35850139275129559 : 60A6890DAA643661
PRP: Verified
PRP without proof (not generated)
2017-10-20Oliver KruseC-PRP
M2741201/35850139275129559 : 60A6890DAA643661
PRP: Verified
PRP without proof (not generated)