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
53796947Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 635000
B2 = 18097500
LL
StatusDateUserResidueShift
Verified2012-04-24mister_phil502877760313A19913051407
Verified2019-10-18Ben Delo502877760313A19944436203
History
DateUserTypeResult
2019-10-18Ben DeloC-LL
502877760313A199
2019-08-29lobsterfordinnerNF
no factor from 2^73 to 2^74
2016-02-09AirSquirrelsNF
no factor from 2^72 to 2^73
2012-04-24mister_philC-LL
502877760313A199
2012-04-01Craig MeyersNF
no factor from 2^71 to 2^72
2011-09-18megavinkNF
no factor from 2^70 to 2^71
2011-05-18StoneGnomeNF
no factor from 2^69 to 2^70
2011-03-22Torchwood InstituteNF
no factor from 2^68 to 2^69
2011-03-16Scott CrawfordNF-PM1
B1=635000, B2=18097500, E=6
2009-09-15kronos2k3NF
no factor from 2^67 to 2^68
2009-05-02Sturle SundeNF
no factor from 2^66 to 2^67
2008-12-21tameiNF
no factor from 2^65 to 2^66
2008-12-20tameiNF
no factor from 2^64 to 2^65
2008-07-14-Anonymous-NF
no factor to 2^64