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
47502863Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 272
P-1
B1 = 560000
B2 = 14980000
LL
StatusDateUserResidueShift
Verified2009-02-19G-Funk747DCB2584C167C113605299
Bad2017-01-05-Anonymous-F353966056396BA834214614
Verified2017-01-27MadPoo747DCB2584C167C121747077
History
DateUserTypeResult
2024-06-25GregNF
no factor from 2^69 to 2^70
2019-05-18Sid & AndyNF
no factor from 2^73 to 2^74
2018-01-24Random GPUsNF
no factor from 2^72 to 2^73
2017-01-27MadPooC-LL
747DCB2584C167C1
2017-01-05-Anonymous-C-LL
F353966056396BA8
2015-12-14AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-14AirSquirrelsNF
no factor from 2^70 to 2^71
2015-08-26Judge HaleNF
no factor from 2^69 to 2^70
2009-02-19G-FunkC-LL
747DCB2584C167C1
2008-11-22G-FunkNF-PM1
B1=560000, B2=14980000