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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
333911Factored
FactorDigitsBitsDate
2624497453436179975116086700473097.72019-03-23 11:34:49
ECM
DigitsB1Curves
2550000280 / 280
30250000560 / 640
Estimated T-Level: 29.4 ⓘ
TF below 2^93 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski2B620
Verified (Factored)Unknown2B620
Verified (Factored)Klaus KastensA87965A6EB9FAB620
Verified (Factored)Eivind TrielA87965A6EB9FAB62129104
Verified (Factored)2002-02-03Dennis PopeA87965A6EB9FAB62229240
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-03-24_p95holder_AA791F6E25D980AF13853853
Verified2019-03-26arnaudAA791F6E25D980AF110090153
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-03-26arnaudC-PRP
M333911/262449745343617997511608670047 : AA791F6E25D980AF
PRP: Verified
PRP without proof (small exponent)
2019-03-24_p95holder_C-PRP
M333911/262449745343617997511608670047 : AA791F6E25D980AF
PRP: Verified
PRP without proof (small exponent)
2019-03-23alexF-ECM
Factor: 262449745343617997511608670047 / (ECM curve 377, B1=250000, B2=25000000, Sigma=6166194919583659)
2018-01-27Gordon SpenceNF
no factor from 2^64 to 2^65
2016-08-05mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2015-12-10Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-10Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-23NRNF
no factor from 2^61 to 2^62
2013-04-20Sid & AndyNF
no factor from 2^60 to 2^61
2012-01-07alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-08-09JossNF-PM1
B1=1377496
2009-02-06Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59