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
51953507Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 840000
B2 = 840000
LL
StatusDateUserResidueShift
Verified2012-05-10yphysics5D8E20C1655B948043945982
Verified2019-12-19Smok_bmv 5D8E20C1655B948044411673
History
DateUserTypeResult
2019-12-19Smok_bmv C-LL
5D8E20C1655B9480
2019-06-17lobsterfordinnerNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^60 to 2^63
2016-01-16AirSquirrelsNF
no factor from 2^72 to 2^73
2012-05-10yphysicsC-LL
5D8E20C1655B9480
2012-02-01Tom DuellNF
no factor from 2^71 to 2^72
2012-02-01Tom DuellNF
no factor from 2^70 to 2^71
2011-11-21Kyle AskineNF
no factor from 2^69 to 2^70
2011-03-30MikeNF-PM1
B1=840000
2010-03-27LoicNF
no factor from 2^68 to 2^69
2009-06-20kutensNF
no factor from 2^67 to 2^68
2008-12-19flouranNF
no factor from 2^66 to 2^67
2008-12-07Sturle SundeNF
no factor from 2^65 to 2^66
2008-12-06Sturle SundeNF
no factor from 2^64 to 2^65
2008-12-04Sturle SundeNF
no factor from 2^63 to 2^64