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
3072403Factored
FactorDigitsBitsDate
18919930583908732967471643832890.62021-01-25 05:13:38
ECM
DigitsB1Curves
255000037 / 280
Estimated T-Level: 20.7
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-01-26John Jolly83B94294B3B23D320
Verified (Factored)1999-06-15Adrian Dacunha83B94294B3B23D32207309
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-01-25mrh4E78C8900359D6F119998353
History
DateUserTypeResult
2022-02-12JossNF-PM1
B1=1000000, B2=119912100
2022-01-20JossNF
no factor from 2^67 to 2^68
2021-01-25ATHCERT
PRP Certification
Proof certified good
2021-01-25mrhC-PRP
M3072403/1891993058390873296747164383 : 4E78C8900359D6F1
PRP proof power = 7
PRP: Verified
Proof certified good
2021-01-25ZenzomaF-ECM
Factor: 1891993058390873296747164383 / (ECM curve 1, B1=50000, B2=5000000, Sigma=7888804659562852)
2018-08-05ramgeisNF
no factor from 2^67 to 2^68
2018-01-26mikrNF-PM1
B1=3000000, B2=100000000, E=12
2017-05-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-08Squeeky_SquirrelNF-PM1
B1=205000, B2=5996250, E=12
2015-06-06ThaNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-10-26Sid & AndyNF
no factor from 2^61 to 2^62
2010-09-21markrNF-PM1
B1=110000, B2=2447500, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61