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
2750743Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
22667662736091341.0old
ECM
DigitsB1Curves
255000059 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-20Oliver KruseB3908E165B8D1A0A174260853
Verified2017-12-05kkmrkkblmbrbkB3908E165B8D1A0A158517053
History
DateUserTypeResult
2022-11-24USAFSSNF-PM1
B1=255000, B2=191586780
2017-12-05kkmrkkblmbrbkC-PRP
M2750743/2266766273609 : B3908E165B8D1A0A
PRP: Verified
PRP without proof (not generated)
2017-10-20Oliver KruseC-PRP
M2750743/2266766273609 : B3908E165B8D1A0A
PRP: Verified
PRP without proof (not generated)