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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2442593Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4904562741222460311858.8old
ECM
DigitsB1Curves
2550000158 / 280
Estimated T-Level: 22.8
TF below 2^71 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Marc HoneyD496E6CD0E670F9B0
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-13Oliver Kruse43FAB75285810F58115257153
Verified2017-11-27storm551043FAB75285810F581106605553
History
DateUserTypeResult
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-27storm5510C-PRP
M2442593/490456274122246031 : 43FAB75285810F58
PRP: Verified
PRP without proof (not generated)
2017-10-13Oliver KruseC-PRP
M2442593/490456274122246031 : 43FAB75285810F58
PRP: Verified
PRP without proof (not generated)