Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
47942437Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 560000
B2 = 14700000
LL
StatusDateUserResidueShift
Verified2010-02-04UCLA Mathematics5C7590A3BDF563CA24589333
Verified2017-09-24-Anonymous-5C7590A3BDF563CA44876715
History
DateUserTypeResult
2024-08-18Jarod McClintockNF
no factor from 2^69 to 2^70
2018-02-07ktonyNF
no factor from 2^72 to 2^73
2017-09-24-Anonymous-C-LL
5C7590A3BDF563CA
2015-12-04-Anonymous-NF
no factor from 2^71 to 2^72
2015-10-24Architects CubedNF
no factor from 2^70 to 2^71
2015-05-16Architects CubedNF
no factor from 2^69 to 2^70
2010-02-04UCLA MathematicsC-LL
5C7590A3BDF563CA
2010-01-06UCLA MathematicsNF-PM1
B1=560000, B2=14700000