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
47270407Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 560000
B2 = 17360000
LL
StatusDateUserResidueShift
Verified2011-05-28FlorianF29BC128B3A80F5343031238
Verified2018-12-30AUM - KuwaitF29BC128B3A80F537903868
History
DateUserTypeResult
2018-12-30AUM - KuwaitC-LL
F29BC128B3A80F53
2017-12-03TheJudgerNF
no factor from 2^72 to 2^73
2015-12-12AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-12AirSquirrelsNF
no factor from 2^70 to 2^71
2015-07-17Sid & AndyNF
no factor from 2^69 to 2^70
2013-10-14Le ComteNF
no factor from 2^68 to 2^69
2011-05-28FlorianC-LL
F29BC128B3A80F53
2009-09-05MCASNF-PM1
B1=560000, B2=17360000