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
67038577Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 730000
B2 = 17885000
LL
StatusDateUserResidueShift
Verified2014-08-17Risto A. PajuFCA989620F87617B37429533
Verified2023-04-29Ryan PropperFCA989620F87617B22130458
History
DateUserTypeResult
2023-04-29Ryan PropperC-LL
FCA989620F87617B
2020-07-19TheJudgerNF
no factor from 2^74 to 2^75
2014-08-17Risto A. PajuC-LL
FCA989620F87617B
2014-02-12Jerry HallettNF
no factor from 2^73 to 2^74
2014-02-12Jerry HallettNF
no factor from 2^72 to 2^73
2014-02-12Jerry HallettNF
no factor from 2^71 to 2^72
2013-08-19NesowaNF-PM1
B1=730000, B2=17885000, E=6
2012-09-20Clown_RoyalNF
no factor from 2^70 to 2^71
2012-02-13-Anonymous-NF
no factor from 2^69 to 2^70
2009-12-12GrunwalderGIMPNF
no factor from 2^68 to 2^69
2009-04-13PrimeCruncherNF
no factor from 2^67 to 2^68
2009-04-08PrimeCruncherNF
no factor from 2^66 to 2^67
2009-04-04PrimeCruncherNF
no factor from 2^65 to 2^66
2009-03-31S36049NF
no factor from 2^64 to 2^65
2008-12-10Wojciech FlorekNF
no factor from 2^63 to 2^64