Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
68003251Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 274
P-1
B1 = 2000000
B2 = 45000000
LL
StatusDateUserResidueShift
Verified2015-09-15curtiscC41105EA052D2F8131288535
Verified2023-07-26Sergei KozelkoC41105EA052D2F8116936598
History
DateUserTypeResult
2024-06-14LaurVNF
no factor from 2^71 to 2^72
2023-07-26Sergei KozelkoC-LL
C41105EA052D2F81
2019-11-24mikrNF
no factor from 2^75 to 2^76
2019-11-24mikrNF-PM1
B1=2000000, B2=45000000, E=6
2015-09-15curtiscC-LL
C41105EA052D2F81
2015-08-10NickOfTimeNF
no factor from 2^74 to 2^75
2014-06-01NesowaNF-PM1
B1=620000, B2=12710000, E=12
2014-03-26RichD0NF
no factor from 2^73 to 2^74
2014-03-25RichD0NF
no factor from 2^72 to 2^73
2013-10-20Architects CubedNF
no factor from 2^71 to 2^72
2012-07-25-Anonymous-NF
no factor from 2^70 to 2^71
2012-02-01debrouxlNF
no factor from 2^69 to 2^70
2010-01-20DugucloudNF
no factor from 2^68 to 2^69
2010-01-14steinrarNF
no factor from 2^67 to 2^68
2010-01-13steinrarNF
no factor from 2^66 to 2^67
2010-01-12MilldangNF
no factor from 2^65 to 2^66
2009-04-10LynnNF
no factor from 2^64 to 2^65
2008-10-22kmdNF
no factor to 2^64