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
79659947Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 275
P-1
B1 = 695000
B2 = 14073750
LL
StatusDateUserResidueShift
Verified2017-01-06PhP714768F76F250D5BA03223453
Verified2025-09-14Umbrarian4768F76F250D5BA015283122
History
DateUserTypeResult
2025-09-14UmbrarianC-LL
4768F76F250D5BA0
2017-01-06PhP71C-LL
4768F76F250D5BA0
2016-11-18HardyP GermanyNF-PM1
B1=695000, B2=14073750
2016-08-23AirSquirrelsNF
no factor from 2^74 to 2^75
2016-08-23AirSquirrelsNF
no factor from 2^73 to 2^74
2016-08-23AirSquirrelsNF
no factor from 2^72 to 2^73
2013-01-27DavinNF
no factor from 2^71 to 2^72
2013-01-27DavinNF
no factor from 2^70 to 2^71
2013-01-27DavinNF
no factor from 2^69 to 2^70
2013-01-25Cow_tippingNF
no factor from 2^68 to 2^69
2012-11-08AxelssonNF
no factor from 2^67 to 2^68
2010-12-27GnorfeNF
no factor from 2^66 to 2^67
2010-12-12Craig MeyersNF
no factor from 2^65 to 2^66
2010-11-29Architects CubedNF
no factor from 2^64 to 2^65
2009-05-29Architects CubedNF
no factor from 2^63 to 2^64