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
2677847Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
602194233371135.8old
ECM
DigitsB1Curves
2550000113 / 280
Estimated T-Level: 22.0
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-18Oliver Kruse7C161DEE1E2C1124189881553
Verified2017-12-04kkmrkkblmbrbk7C161DEE1E2C11241264297053
History
DateUserTypeResult
2019-07-04alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-12-04kkmrkkblmbrbkC-PRP
M2677847/60219423337 : 7C161DEE1E2C1124
PRP: Verified
PRP without proof (not generated)
2017-10-18Oliver KruseC-PRP
M2677847/60219423337 : 7C161DEE1E2C1124
PRP: Verified
PRP without proof (not generated)