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
41497333Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 495000
B2 = 13860000
LL
StatusDateUserResidueShift
Verified2008-05-11Lars LindleyB14CFDA0D39E7B0D39099095
Verified2017-07-24Sergey NosovB14CFDA0D39E7B0D18939166
History
DateUserTypeResult
2022-05-06RichD0NF
no factor from 2^72 to 2^73
2017-07-24Sergey NosovC-LL
B14CFDA0D39E7B0D
2015-12-05AirSquirrelsNF
no factor from 2^71 to 2^72
2015-01-13David CampeauNF
no factor from 2^70 to 2^71
2015-01-08Mark RoseNF
no factor from 2^69 to 2^70
2014-02-14LaurVNF
no factor from 2^68 to 2^69