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
25301399Factored
FactorDigitsBitsDate
4785137800555870186224312478.72021-11-02 11:34:48
ECM
DigitsB1Curves
255000034 / 280
Estimated T-Level: 20.6 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2004-10-03Rosangela Canino-Koning28497803E559E3BD21370515
Verified (Factored)2011-03-18Patrik Johansson28497803E559E3BD15096582
History
DateUserTypeResult
2021-11-02Anton RepkoF-PP1
Start=2/7, B1=2000000, B2=120000000, Factor: 478513780055587018622431
2021-10-17TheJudgerNF
no factor from 2^74 to 2^75
2021-10-01TheJudgerNF
no factor from 2^73 to 2^74
2021-08-28TheJudgerNF
no factor from 2^72 to 2^73
2021-08-28TheJudgerNF
no factor from 2^71 to 2^72
2021-06-09mikrNF
no factor from 2^70 to 2^71
2017-05-28ramgeisNF
no factor from 2^69 to 2^70
2017-05-28ramgeisNF
no factor from 2^68 to 2^69
2016-01-04VictordeHollanderNF
no factor from 2^67 to 2^68
2011-03-18Patrik JohanssonC-LL
28497803E559E3BD