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
680177Factored
FactorDigitsBitsDate
67589445332888495691962.62007-08-27 21:24:32
389818950551405952675432375.02016-10-14 12:22:30
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 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
Verified2017-09-28Oliver Kruse761F195D97AAB66A2013
Verified2017-10-13Oliver Kruse761F195D97AAB66A260656313
Verified2017-12-15ATH761F195D97AAB66A27887113
Unverified (Reliable)2020-04-20Oliver Kruse361AF513C87C6D__25712353
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-20Oliver KruseC-PRP
M680177/6758944533288849569/38981895055140595267543 : 361AF513C87C6D__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-15ATHC-PRP
M680177/6758944533288849569/38981895055140595267543 : 761F195D97AAB66A
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M680177/6758944533288849569/38981895055140595267543 : 761F195D97AAB66A
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M680177/6758944533288849569/38981895055140595267543 : 761F195D97AAB66A
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M680177/6758944533288849569/38981895055140595267543 : 761F195D97AAB66A
PRP without proof (not generated)
2016-10-14TJAOIF-ECM
Factor: 38981895055140595267543 / (ECM curve 10, B1=50000, B2=5000000)
2007-08-27Chad DavisF-ECM
Factor: 6758944533288849569