Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
50604941Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2011-11-07proA44F9EA912EC39E236447191
Verified2020-02-16Sergey NosovA44F9EA912EC39E22449418
History
DateUserTypeResult
2020-02-16Sergey NosovC-LL
A44F9EA912EC39E2
2019-06-02TheJudgerNF
no factor from 2^73 to 2^74
2018-04-29Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=6
2015-12-18AirSquirrelsNF
no factor from 2^72 to 2^73
2015-12-04-Anonymous-NF
no factor from 2^71 to 2^72
2015-07-11Mark RoseNF
no factor from 2^70 to 2^71
2015-01-01monstNF
no factor from 2^69 to 2^70
2011-11-07proC-LL
A44F9EA912EC39E2
2010-12-16-Anonymous-NF-PM1
B1=815000
2008-10-29RMAC9.5NF
no factor to 2^69
2008-09-03DerekNF
no factor to 2^64