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
71237053Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 645000
B2 = 12900000
LL
StatusDateUserResidueShift
Verified2017-04-01Jon Pace7CA74DF724770B3D68155621
Verified2024-10-06-Anonymous-7CA74DF724770B3D63750770
History
DateUserTypeResult
2024-10-06-Anonymous-C-LL
7CA74DF724770B3D
2017-04-01Jon PaceC-LL
7CA74DF724770B3D
2016-07-15-Anonymous-NF
no factor from 2^74 to 2^75
2015-01-04TheJudgerNF-PM1
B1=645000, B2=12900000, E=6
2014-12-14TheJudgerNF
no factor from 2^73 to 2^74
2014-12-14TheJudgerNF
no factor from 2^72 to 2^73
2014-11-01ixfd64NF
no factor from 2^71 to 2^72
2014-04-27HBendtzNF
no factor from 2^70 to 2^71
2012-11-13GrunwalderGIMPNF
no factor from 2^69 to 2^70
2010-07-10XorsistNF
no factor from 2^68 to 2^69
2010-07-09Choi4KANGNF
no factor from 2^67 to 2^68
2010-07-03SAHS Tech DeptNF
no factor from 2^66 to 2^67
2010-06-30xkeyNF
no factor from 2^65 to 2^66
2010-03-16Carlos HernandezNF
no factor from 2^64 to 2^65
2008-10-21Wojciech FlorekNF
no factor to 2^64