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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3333391Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
15000259511030.5old
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
Verified2017-11-04Oliver Kruse64A1FBB07D445161139746453
Verified2017-12-15kkmrkkblmbrbk64A1FBB07D4451611282698153
History
DateUserTypeResult
2022-09-06JossNF-PM1
B1=1111130, B2=226749600
2022-01-24JossNF-PM1
B1=1111130, B2=119912100
2021-05-03JossNF
no factor from 2^67 to 2^68
2021-03-09JossNF-PM1
B1=333339, B2=3666730, E=6
2017-12-15kkmrkkblmbrbkC-PRP
M3333391/1500025951 : 64A1FBB07D445161
PRP: Verified
PRP without proof (not generated)
2017-11-04Oliver KruseC-PRP
M3333391/1500025951 : 64A1FBB07D445161
PRP: Verified
PRP without proof (not generated)