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
43852297Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 272
P-1
B1 = 530000
B2 = 14840000
LL
StatusDateUserResidueShift
Verified2010-08-19curtisc603AFB9E982761E430284570
Verified2017-09-26Al T603AFB9E982761E439474197
History
DateUserTypeResult
2019-03-29Sid & AndyNF
no factor from 2^73 to 2^74
2018-08-05-Anonymous-NF
no factor from 2^72 to 2^73
2017-09-26Al TC-LL
603AFB9E982761E4
2015-10-16-Anonymous-NF
no factor from 2^71 to 2^72
2015-05-28Mark RoseNF
no factor from 2^70 to 2^71
2015-04-18David CampeauNF
no factor from 2^69 to 2^70
2014-04-26AxelssonNF
no factor from 2^68 to 2^69
2010-08-19curtiscC-LL
603AFB9E982761E4
2009-03-29ANONYMOUSNF-PM1
B1=530000, B2=14840000