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
41147797Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 272
P-1
B1 = 1500000
B2 = 30000000
LL
StatusDateUserResidueShift
Verified2009-06-28ANONYMOUSC2CDFEB45BD0986622643999
Verified2017-05-29Sergey NosovC2CDFEB45BD0986610019243
History
DateUserTypeResult
2024-06-14James HeinrichNF
no factor from 2^68 to 2^69
2020-08-12Sid & AndyNF
no factor from 2^74 to 2^75
2020-01-18-Anonymous-NF
no factor from 2^73 to 2^74
2019-12-16Sid & AndyNF-PM1
B1=1500000, B2=30000000, E=12
2019-10-12-Anonymous-NF
no factor from 2^72 to 2^73
2017-05-29Sergey NosovC-LL
C2CDFEB45BD09866
2015-06-21tigreroarsNF
no factor from 2^71 to 2^72
2015-01-03chalsallNF
no factor from 2^70 to 2^71
2014-12-31Architects CubedNF
no factor from 2^69 to 2^70
2013-12-10Carsten KossendeyNF
no factor from 2^68 to 2^69
2009-06-28ANONYMOUSC-LL
C2CDFEB45BD09866
2009-03-09ANONYMOUSNF-PM1
B1=670000