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
2569117Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
131487408071133.6old
310760392331134.92008-07-14 20:25:05
ECM
DigitsB1Curves
255000081 / 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
Verified2017-10-15Oliver Kruse7942323F41E10F2B2105008053
Verified2017-12-01kkmrkkblmbrbk7942323F41E10F2B2180376553
History
DateUserTypeResult
2022-08-31USAFSSNF-PM1
B1=480000, B2=423235890
2017-12-01kkmrkkblmbrbkC-PRP
M2569117/13148740807/31076039233 : 7942323F41E10F2B
PRP: Verified
PRP without proof (not generated)
2017-10-15Oliver KruseC-PRP
M2569117/13148740807/31076039233 : 7942323F41E10F2B
PRP: Verified
PRP without proof (not generated)
2008-07-14George WoltmanF-ECM
Factor: 31076039233