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
54913751Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 545000
B2 = 11717500
LL
StatusDateUserResidueShift
Verified2014-08-02driveByUpgrades128FE62E243420338291905
Verified2020-12-03Sergey Nosov128FE62E2434203341435469
History
DateUserTypeResult
2020-12-03Sergey NosovC-LL
128FE62E24342033
2019-05-26TheJudgerNF
no factor from 2^73 to 2^74
2014-08-02driveByUpgradesC-LL
128FE62E24342033
2014-06-08Architects CubedNF
no factor from 2^72 to 2^73
2012-06-03TheJudgerNF-PM1
B1=545000, B2=11717500, E=12
2012-05-27bcp19NF
no factor from 2^71 to 2^72
2011-08-25David CampeauNF
no factor from 2^70 to 2^71
2011-05-23Paul LeylandNF
no factor from 2^69 to 2^70
2011-04-02S00030NF
no factor from 2^68 to 2^69
2009-07-25NoN-StoPNF
no factor from 2^67 to 2^68
2009-02-08trifNF
no factor from 2^66 to 2^67
2008-12-30Sturle SundeNF
no factor from 2^65 to 2^66
2008-12-30Sturle SundeNF
no factor from 2^64 to 2^65
2008-12-29Yannic SpiethNF
no factor from 2^63 to 2^64
2008-07-29-Anonymous-NF
no factor to 2^63