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
54055229Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 575000
B2 = 13081250
LL
StatusDateUserResidueShift
Verified2012-02-08MikeBA1222128FB84924A3138552
Verified2020-08-11Brian Cudiamat - uhyeahwhateverA1222128FB84924A15830671
History
DateUserTypeResult
2020-08-11Brian Cudiamat - uhyeahwhateverC-LL
A1222128FB84924A
2018-08-07Sid & AndyNF
no factor from 2^73 to 2^74
2016-02-10AirSquirrelsNF
no factor from 2^72 to 2^73
2015-12-19-Anonymous-NF
no factor from 2^71 to 2^72
2012-02-08MikeBC-LL
A1222128FB84924A
2011-12-21ANONYMOUSNF-PM1
B1=575000, B2=13081250, E=6
2011-09-08megavinkNF
no factor from 2^70 to 2^71
2011-07-22TheJudgerNF
no factor from 2^69 to 2^70
2011-03-30eon_blue_apocalypseNF
no factor from 2^68 to 2^69
2009-05-03Sturle SundeNF
no factor from 2^67 to 2^68
2008-12-26Sturle SundeNF
no factor from 2^66 to 2^67
2008-12-25James HintzNF
no factor from 2^65 to 2^66
2008-12-23James HintzNF
no factor from 2^64 to 2^65
2008-11-171997rj7NF
no factor to 2^64