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
53865067Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 273
P-1
B1 = 635000
B2 = 18097500
LL
StatusDateUserResidueShift
Verified2013-12-23Koekie322ECB2B3A5FB8C629415595
Verified2020-10-12S485122322ECB2B3A5FB8C642910685
History
DateUserTypeResult
2020-10-12S485122C-LL
322ECB2B3A5FB8C6
2020-10-07ViliamFNF
no factor from 2^74 to 2^75
2019-08-27ChuckNF
no factor from 2^73 to 2^74
2016-02-13AirSquirrelsNF
no factor from 2^72 to 2^73
2013-12-23KoekieC-LL
322ECB2B3A5FB8C6
2012-05-01GregNF
no factor from 2^71 to 2^72
2011-05-12kdgehmanNF
no factor from 2^70 to 2^71
2011-05-12kdgehmanNF
no factor from 2^69 to 2^70
2011-04-04MilldangNF
no factor from 2^68 to 2^69
2011-03-30Patrik JohanssonNF-PM1
B1=635000, B2=18097500, E=6
2009-05-01Howard ChungNF
no factor from 2^67 to 2^68
2009-02-25borkencodeNF
no factor from 2^66 to 2^67
2009-02-23borkencodeNF
no factor from 2^65 to 2^66
2009-02-21borkencodeNF
no factor from 2^64 to 2^65
2008-08-18-Anonymous-NF
no factor to 2^64