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
371999Factored
FactorDigitsBitsDate
7837770672367921031859.42007-08-29 05:38:31
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver Kruse3E2FD9E44B8A06CB1013
Verified2017-11-02kkmrkkblmbrbk3E2FD9E44B8A06CB133459113
Unverified (Reliable)2020-04-18Oliver Kruse9F414E17E70878__114856053
History
DateUserTypeResult
2024-02-18Denial140NF-PM1
B1=1000000, B2=7503853500
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M371999/783777067236792103 : 9F414E17E70878__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-11-02kkmrkkblmbrbkC-PRP
M371999/783777067236792103 : 3E2FD9E44B8A06CB
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M371999/783777067236792103 : 3E2FD9E44B8A06CB
PRP: Unverified (Reliable)
PRP without proof (not generated)
2007-08-29Team_BunduF-ECM
Factor: 783777067236792103