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
63363967Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 274
P-1
B1 = 600000
B2 = 12000000
LL
StatusDateUserResidueShift
Verified2014-07-27Amazon EC23B286B5C94E365D131366096
Verified2021-09-27cryptarithmic3B286B5C94E365D11220825
History
DateUserTypeResult
2021-09-27cryptarithmicC-LL
3B286B5C94E365D1
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2014-07-27Amazon EC2C-LL
3B286B5C94E365D1
2013-11-09kdgehmanNF
no factor from 2^73 to 2^74
2013-08-25rduerrNF-PM1
B1=600000, B2=12000000
2013-06-07BdotNF
no factor from 2^72 to 2^73
2013-06-07BdotNF
no factor from 2^71 to 2^72
2012-09-09Bold_SeekerNF
no factor from 2^70 to 2^71
2011-12-23GrunwalderGIMPNF
no factor from 2^69 to 2^70
2009-11-22-Anonymous-NF
no factor from 2^68 to 2^69
2009-11-17o-jillNF
no factor from 2^67 to 2^68
2009-11-09tmorrowNF
no factor from 2^66 to 2^67
2009-11-04PieceradNF
no factor from 2^65 to 2^66
2009-09-03Sturle SundeNF
no factor from 2^64 to 2^65
2009-02-23Wojciech FlorekNF
no factor from 2^63 to 2^64