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
2874023Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
5748047722.5old
ECM
DigitsB1Curves
255000083 / 280
Estimated T-Level: 21.5
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-23Oliver Kruse0709CFA474C89C661106573053
Verified2017-12-08kkmrkkblmbrbk0709CFA474C89C66193050653
History
DateUserTypeResult
2022-11-25USAFSSNF-PM1
B1=255000, B2=196319970
2017-12-08kkmrkkblmbrbkC-PRP
M2874023/5748047 : 0709CFA474C89C66
PRP: Verified
PRP without proof (not generated)
2017-10-23Oliver KruseC-PRP
M2874023/5748047 : 0709CFA474C89C66
PRP: Verified
PRP without proof (not generated)