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
56555581TF
No factors below 274
TF target 273
P-1
B1 = 570000
B2 = 12112500
LL
StatusDateUserResidueShift
Bad2012-10-07Ugo Marturano82481BCF607E40F98717783
Verified2013-06-07curtisc8F1747FDFE58FF5F45353718
Verified2016-11-15AirSquirrels8F1747FDFE58FF5F0
History
DateUserTypeResult
2018-11-08Architects CubedNF
no factor from 2^73 to 2^74
2016-11-15AirSquirrelsC-LL
8F1747FDFE58FF5F
2016-02-23Mark RoseNF
no factor from 2^63 to 2^64
2015-07-28Mark RoseNF
no factor from 2^72 to 2^73
2013-06-07curtiscC-LL
8F1747FDFE58FF5F
2012-10-07Ugo MarturanoC-LL
82481BCF607E40F9
2012-07-17Sebastian HornbostelNF-PM1
B1=570000, B2=12112500, E=6
2012-07-04Jerry HallettNF
no factor from 2^71 to 2^72
2011-11-30shaugeNF
no factor from 2^70 to 2^71
2011-06-26XyzzyNF
no factor from 2^69 to 2^70
2011-04-20-Anonymous-NF
no factor from 2^68 to 2^69
2009-05-22jfarekNF
no factor from 2^67 to 2^68
2008-03-24James HeinrichNF
no factor from 2^66 to 2^67
2008-03-23James HeinrichNF
no factor from 2^65 to 2^66
2008-03-22James HeinrichNF
no factor from 2^64 to 2^65