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:





MnDetails
47456863
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 525000
B2 = 10762500
LL
StatusDateUserResidueShiftSoftware
Verified2009-05-19Guido Lorenzini10AD080F2E5C6CEC37863037Windows,Prime95,v25.7,build 3
Verified2015-11-28ATH10AD080F2E5C6CEC33974541Windows 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2018-01-17ktonyNFno factor TF: 72-73
2015-11-28ATHC-LL10AD080F2E5C6CEC
2013-06-29Architects CubedNF-PM1B1=525000, B2=10762500, E=6
2013-06-26David CampeauNFno factor TF: 71-72
2012-07-20David CampeauNFno factor TF: 70-71
2012-07-20David CampeauNFno factor TF: 69-70
2009-05-19Guido LorenziniC-LL10AD080F2E5C6CEC
2008-03-22Team Prime RibNFno factor TF: 1-69