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
2131537Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
965520309539990411756.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000159 / 640
Estimated T-Level: 26.2
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-08Oliver Kruse93CCC7ED3E1EA5121013
Verified2017-11-18kkmrkkblmbrbk93CCC7ED3E1EA512134353813
History
DateUserTypeResult
2022-08-16USAFSSNF-PM1
B1=208000, B2=203128380
2017-11-18kkmrkkblmbrbkC-PRP
M2131537/96552030953999041 : 93CCC7ED3E1EA512
PRP: Verified
PRP without proof (not generated)
2017-10-08Oliver KruseC-PRP
M2131537/96552030953999041 : 93CCC7ED3E1EA512
PRP: Verified
PRP without proof (not generated)