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
65238727Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 1250000
B2 = 37500000
LL
StatusDateUserResidueShift
Verified2014-01-31JoeAquilinaD6EA396F6F0BBAD722567142
Bad2022-12-10Egor K05741F0229C6B17928961806
Verified2022-12-30yooperD6EA396F6F0BBAD745719363
History
DateUserTypeResult
2022-12-30yooperC-LL
D6EA396F6F0BBAD7
2022-12-12riccardo ubertiNF-PM1
B1=1250000, B2=37500000
2022-12-10Egor KC-LL
05741F0229C6B179
2022-10-06aupNF
no factor from 2^74 to 2^75
2016-08-26Adam BuranNF
no factor from 2^10 to 2^60
2016-03-27Mark RoseNF
no factor from 2^60 to 2^63
2014-01-31JoeAquilinaC-LL
D6EA396F6F0BBAD7
2013-12-28timc995NF-PM1
B1=585000, B2=11846250, E=12
2013-12-24The MawnNF
no factor from 2^73 to 2^74
2013-12-24The MawnNF
no factor from 2^72 to 2^73
2013-12-01AllRandomNF
no factor from 2^71 to 2^72
2012-06-25Larry LogoryNF
no factor from 2^70 to 2^71
2012-01-17ErikNF
no factor from 2^69 to 2^70
2009-10-17BranMuffinNF
no factor from 2^68 to 2^69
2009-03-25Sturle SundeNF
no factor from 2^67 to 2^68
2009-03-23-Anonymous-NF
no factor from 2^66 to 2^67
2009-03-18glennpatNF
no factor from 2^65 to 2^66
2009-03-17glennpatNF
no factor from 2^64 to 2^65
2009-01-06Wojciech FlorekNF
no factor from 2^63 to 2^64