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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
6999431Factored
FactorDigitsBitsDate
2404669828658547661672167.72017-01-07 20:45:31
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-06-15Nick HilliardEBD030CFB4F0567B6767831
Verified (Factored)2001-10-13Lars LindleyEBD030CFB4F0567B6852944
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-01-30Oliver Kruse5E6CF84CD80A32491215837953
Verified2019-02-22kkmrkkblmbrbk5E6CF84CD80A3249152735953
History
DateUserTypeResult
2019-02-22kkmrkkblmbrbkC-PRP
M6999431/240466982865854766167 : 5E6CF84CD80A3249
PRP: Verified
PRP without proof (not generated)
2018-01-30Oliver KruseC-PRP
M6999431/240466982865854766167 : 5E6CF84CD80A3249
PRP: Verified
PRP without proof (not generated)
2017-01-07ConductorF
Factor: 240466982865854766167 / TF: 67-68
2016-04-27Gordon SpenceNF
no factor from 2^66 to 2^67
2015-07-03VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-14lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-12-04James HeinrichNF-PM1
B1=135000, B2=2835000, E=6