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
2116099Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
38089783825.2old
268998504891134.62008-07-14 20:20:33
875576759638731446.32014-02-07 12:56:17
ECM
DigitsB1Curves
2550000280 / 280
30250000164 / 640
Estimated T-Level: 26.3
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-07kkmrkkblmbrbk6CEC65B8B1D421A33013
Verified2017-10-21Oliver Kruse6CEC65B8B1D421A33190516013
History
DateUserTypeResult
2017-10-21Oliver KruseC-PRP
M2116099/38089783/26899850489/87557675963873 : 6CEC65B8B1D421A3
PRP: Verified
PRP without proof (not generated)
2017-10-07kkmrkkblmbrbkC-PRP
M2116099/38089783/26899850489/87557675963873 : 6CEC65B8B1D421A3
PRP: Verified
PRP without proof (not generated)
2016-03-25alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-02-07TJAOIF
Factor: 87557675963873
2008-07-14George WoltmanF-ECM
Factor: 26899850489