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
2764679Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
156425537831133.9old
128367861227031443.52008-09-30 14:37:51
ECM
DigitsB1Curves
255000080 / 280
Estimated T-Level: 21.4
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-20Oliver Kruse6C0930EFED0DDC322149995253
Verified2017-12-06kkmrkkblmbrbk6C0930EFED0DDC322152670153
History
DateUserTypeResult
2022-11-28USAFSSNF-PM1
B1=320000, B2=261254070
2017-12-06kkmrkkblmbrbkC-PRP
M2764679/15642553783/12836786122703 : 6C0930EFED0DDC32
PRP: Verified
PRP without proof (not generated)
2017-10-20Oliver KruseC-PRP
M2764679/15642553783/12836786122703 : 6C0930EFED0DDC32
PRP: Verified
PRP without proof (not generated)
2008-09-30markrF
Factor: 12836786122703