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

PrimeNet Exponent Status

Exponent Range:





MnDetails
2536561
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
15219367823.9old
ECM
DigitsB1Curves
2550000218 / 280
Estimated T-Level: 23.9
TF below 2^74 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-14Oliver KruseA8374BBB2B8D0524179870753
Verified
PRP without proof (not generated)
2017-12-01storm5510A8374BBB2B8D05241192678753
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-01storm5510C-PRPM2536561/15219367 : A8374BBB2B8D0524
2017-10-14Oliver KruseC-PRPM2536561/15219367 : A8374BBB2B8D0524