Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
2567827
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
123255697926.9old
2010800049537671547.52014-03-07 11:19:09
ECM
DigitsB1Curves
2550000184 / 280
Estimated T-Level: 23.3
TF below 2^72 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-15Oliver Kruse4E6605E3CB6C279C2235931553
Verified
PRP without proof (not generated)
2017-12-01storm55104E6605E3CB6C279C2107789253
History
DateUserTypeResult
2022-08-30USAFSSNF-PM1B1=480000, B2=423235890
2017-12-01storm5510C-PRPM2567827/123255697/201080004953767 : 4E6605E3CB6C279C
2017-10-15Oliver KruseC-PRPM2567827/123255697/201080004953767 : 4E6605E3CB6C279C
2014-03-07TJAOIFFactor: 201080004953767