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:










MnStatusDetails
4184569Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
426826039928.7old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-15Oliver Kruse2C1D4086E3AD339A1252372153
Verified2017-12-28kkmrkkblmbrbk2C1D4086E3AD339A1298765753
History
DateUserTypeResult
2023-02-23USAFSSNF-PM1
B1=300000, B2=170008410
2017-12-28kkmrkkblmbrbkC-PRP
M4184569/426826039 : 2C1D4086E3AD339A
PRP: Verified
PRP without proof (not generated)
2017-11-15Oliver KruseC-PRP
M4184569/426826039 : 2C1D4086E3AD339A
PRP: Verified
PRP without proof (not generated)