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
42749207Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 450000
B2 = 4162500
LL
StatusDateUserResidueShift
Verified2012-01-08WR35C446F5452704D139373794
Verified2016-10-28Art335C446F5452704D115297300
History
DateUserTypeResult
2018-12-23Architects CubedNF
no factor from 2^72 to 2^73
2016-10-28Art3C-LL
35C446F5452704D1
2015-09-03-Anonymous-NF
no factor from 2^71 to 2^72
2015-04-09Mark RoseNF
no factor from 2^70 to 2^71
2014-10-26Grant McCrackenNF
no factor from 2^69 to 2^70
2014-01-10Torben K.NF
no factor from 2^68 to 2^69
2012-01-08WRC-LL
35C446F5452704D1
2010-10-09-Anonymous-NF-PM1
B1=450000, B2=4162500