Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
63406169Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 274
P-1
B1 = 570000
B2 = 11400000
LL
StatusDateUserResidueShift
Verified2014-08-02Amazon EC2142AB4670796679E29783101
Verified2022-05-09Egor K142AB4670796679E12588029
History
DateUserTypeResult
2022-05-09Egor KC-LL
142AB4670796679E
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2014-08-02Amazon EC2C-LL
142AB4670796679E
2013-07-01TheJudgerNF-PM1
B1=570000, B2=11400000, E=12
2013-04-11Tim SorberaNF
no factor from 2^73 to 2^74
2013-04-11Tim SorberaNF
no factor from 2^72 to 2^73
2013-04-11Tim SorberaNF
no factor from 2^71 to 2^72
2013-04-11Tim SorberaNF
no factor from 2^70 to 2^71
2011-12-23Joe BauerNF
no factor from 2^69 to 2^70
2009-11-05Sturle SundeNF
no factor from 2^68 to 2^69
2009-03-09jfarekNF
no factor from 2^67 to 2^68
2009-03-07jfarekNF
no factor from 2^66 to 2^67
2009-03-05jfarekNF
no factor from 2^65 to 2^66
2009-03-03jfarekNF
no factor from 2^64 to 2^65
2009-02-17Wojciech FlorekNF
no factor from 2^63 to 2^64