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
2437121
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
126263290873991443.5old
ECM
DigitsB1Curves
2550000127 / 280
Estimated T-Level: 22.3
TF below 2^69 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 KruseC36BCC0447B5EC7C113189253
Verified
PRP without proof (not generated)
2017-11-27storm5510C36BCC0447B5EC7C1156481153
History
DateUserTypeResult
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-27storm5510C-PRPM2437121/12626329087399 : C36BCC0447B5EC7C
2017-10-14Oliver KruseC-PRPM2437121/12626329087399 : C36BCC0447B5EC7C