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
3051599Factored
FactorDigitsBitsDate
68347609940442103931212272.52021-05-18 08:28:17
ECM
DigitsB1Curves
255000059 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Paul Iverson60CEF572A07B00390
Verified (Factored)1999-05-30Ronald C. Rosier60CEF572A07B0039761934
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-05-18RichD02B01C4FDDA59C94F150277953
P-1 factors
DateFactorB1B2
2021-08-106834760994044210393121325160031853412171
History
DateUserTypeResult
2022-02-05JossNF-PM1
B1=1000000, B2=119912100
2022-01-20JossNF
no factor from 2^67 to 2^68
2021-08-10oodairaF-PM1
Factor: 6834760994044210393121 / (P-1, B1=32516003, B2=1853412171, E=12)
2021-05-18ANONYMOUSCERT
PRP Certification
Proof certified good
2021-05-18RichD0C-PRP
M3051599/6834760994044210393121 : 2B01C4FDDA59C94F
PRP proof power = 7
PRP: Verified
Proof certified good
2021-05-18daveward2005F-ECM
Factor: 6834760994044210393121 / (ECM curve 2, B1=50000, B2=5000000, Sigma=6822643941208460)
2021-03-25TJAOINF
no factor from 2^68 to 2^69
2018-07-25ramgeisNF
no factor from 2^67 to 2^68
2017-10-01mikrNF-PM1
B1=3000000, B2=100000000, E=12
2017-05-06Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-16Squeeky_SquirrelNF-PM1
B1=205000, B2=5688750, 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
2011-03-20Sid & AndyNF
no factor from 2^61 to 2^62
2010-10-05markrNF-PM1
B1=110000, B2=2447500, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61