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
56605319Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 273
P-1
B1 = 605000
B2 = 14217500
LL
StatusDateUserResidueShift
Verified2012-10-16curtisc3CC0DD7AC04B89D943213701
Verified2019-11-28ANONYMOUS3CC0DD7AC04B89D946097988
History
DateUserTypeResult
2020-03-06Sid & AndyNF
no factor from 2^74 to 2^75
2019-11-28ANONYMOUSC-LL
3CC0DD7AC04B89D9
2018-11-02chuenkitNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^63 to 2^64
2016-01-08-Anonymous-NF
no factor from 2^72 to 2^73
2012-10-16curtiscC-LL
3CC0DD7AC04B89D9
2012-08-30Kyle AskineNF
no factor from 2^71 to 2^72
2012-02-16Numb SkullNF-PM1
B1=605000, B2=14217500, E=12
2011-09-09dmbeesonNF
no factor from 2^70 to 2^71
2011-06-15megavinkNF
no factor from 2^69 to 2^70
2011-04-18Zet_korNF
no factor from 2^68 to 2^69
2009-07-28ChrisNF
no factor from 2^67 to 2^68
2008-04-08scotty24NF
no factor from 2^66 to 2^67
2008-04-08scotty24NF
no factor from 2^65 to 2^66
2008-04-07scotty24NF
no factor from 2^64 to 2^65