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
71338381Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 660000
B2 = 13860000
LL
StatusDateUserResidueShift
Verified2016-10-31byterider7410DDCD7D30D8FC57085602
Verified2024-10-04Ari Mäkinen7410DDCD7D30D8FC49343178
History
DateUserTypeResult
2024-10-04Ari MäkinenC-LL
7410DDCD7D30D8FC
2016-10-31byteriderC-LL
7410DDCD7D30D8FC
2016-07-29-Anonymous-NF
no factor from 2^74 to 2^75
2015-02-01TheJudgerNF-PM1
B1=660000, B2=13860000, E=12
2014-11-23megavinkNF
no factor from 2^73 to 2^74
2014-11-23megavinkNF
no factor from 2^72 to 2^73
2014-11-23megavinkNF
no factor from 2^71 to 2^72
2014-05-01HBendtzNF
no factor from 2^70 to 2^71
2012-11-12M_P_GNF
no factor from 2^69 to 2^70
2010-05-27UCLA MathematicsNF
no factor from 2^68 to 2^69
2010-05-24GrunwalderGIMPNF
no factor from 2^67 to 2^68
2010-05-23Moe GrayNF
no factor from 2^66 to 2^67
2010-05-18-Anonymous-NF
no factor from 2^65 to 2^66
2010-05-17S00030NF
no factor from 2^64 to 2^65
2008-10-07Wojciech FlorekNF
no factor to 2^64