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
1625993Factored
FactorDigitsBitsDate
4292571112319101296170812478.52019-11-04 17:13:49
69697860192008906813653372582.52013-11-11 05:06:27
ECM
DigitsB1Curves
2550000280 / 280
30250000134 / 640
Estimated T-Level: 26.0
TF below 2^82 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Calkins8FA0E6B7D10CA9B70
Verified (Factored)1998-12-13John Enters8FA0E6B7D10CA9B71293461
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-02Oliver KruseFFD94F012E6EFF801013
Verified (Factored)2017-11-01kkmrkkblmbrbkFFD94F012E6EFF801157329613
Verified2019-11-04mnd90B00F5B27553262026663853
Verified2019-11-04ATH0B00F5B2755326202105863053
History
DateUserTypeResult
2019-11-04ATHC-PRP
M1625993/6969786019200890681365337/429257111231910129617081 : 0B00F5B275532620
PRP: Verified
PRP without proof (not generated)
2019-11-04mnd9C-PRP
M1625993/6969786019200890681365337/429257111231910129617081 : 0B00F5B275532620
PRP: Verified
PRP without proof (not generated)
2019-11-04TJAOIF-ECM
Factor: 429257111231910129617081 / (ECM curve 43, B1=50000, B2=5000000)
2017-11-01kkmrkkblmbrbkC-PRP
M1625993/6969786019200890681365337 : FFD94F012E6EFF80
PRP: Verified
PRP without proof (not generated)
2017-10-02Oliver KruseC-PRP
M1625993/6969786019200890681365337 : FFD94F012E6EFF80
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2013-11-11Chang Chia-TcheF-ECM
Factor: 6969786019200890681365337
2011-12-06BigBrotherNF-PM1
B1=1000000, B2=20000000, E=12
2010-08-22GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-30Architects CubedNF
no factor from 2^60 to 2^61