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

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Exponent Range:










MnStatusDetails
63646699Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 570000
B2 = 11257500
LL
StatusDateUserResidueShift
Verified2014-10-18Six Blue Boxes2755997C880CF6EC3520616
Verified2023-02-01Sergey Nosov2755997C880CF6EC14475127
History
DateUserTypeResult
2023-02-01Sergey NosovC-LL
2755997C880CF6EC
2022-12-11tottenhoffNF
no factor from 2^74 to 2^75
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2014-10-18Six Blue BoxesC-LL
2755997C880CF6EC
2013-09-25Christian V.NF-PM1
B1=570000, B2=11257500, E=6
2013-09-23RichD0NF
no factor from 2^73 to 2^74
2013-07-01TheJudgerNF
no factor from 2^72 to 2^73
2013-07-01TheJudgerNF
no factor from 2^71 to 2^72
2012-08-20SWL551NF
no factor from 2^70 to 2^71
2012-01-01Stephan WelkerNF
no factor from 2^69 to 2^70
2009-08-25Sturle SundeNF
no factor from 2^68 to 2^69
2009-03-07Sturle SundeNF
no factor from 2^67 to 2^68
2009-03-06Sturle SundeNF
no factor from 2^66 to 2^67
2009-03-05Sturle SundeNF
no factor from 2^65 to 2^66
2009-03-01AlexNF
no factor from 2^64 to 2^65
2009-02-24Wojciech FlorekNF
no factor from 2^63 to 2^64