Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1415039Factored
FactorDigitsBitsDate
138673823927.0old
1702556216242139080872167.22018-09-14 01:58:46
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-30Oliver Kruse4484D3CC437380CA1013
Verified (Factored)2017-10-26kkmrkkblmbrbk4484D3CC437380CA164355013
Verified2018-09-16Oliver Kruse09711C425E5ED4672118008653
Verified2018-09-16rucio09711C425E5ED467234928853
History
DateUserTypeResult
2018-09-16rucioC-PRP
M1415039/138673823/170255621624213908087 : 09711C425E5ED467
PRP: Verified
PRP without proof (not generated)
2018-09-16Oliver KruseC-PRP
M1415039/138673823/170255621624213908087 : 09711C425E5ED467
PRP: Verified
PRP without proof (not generated)
2018-09-14Chang Chia-TcheF-ECM
Factor: 170255621624213908087 / (ECM curve 2, B1=50000, B2=5000000)
2017-10-26kkmrkkblmbrbkC-PRP
M1415039/138673823 : 4484D3CC437380CA
PRP: Verified
PRP without proof (not generated)
2017-09-30Oliver KruseC-PRP
M1415039/138673823 : 4484D3CC437380CA
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12