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:





MnDetails
39589639
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 450000
B2 = 7762500
LL
StatusDateUserResidueShiftSoftware
Verified2008-03-22Stephen GruppCE607902962F0DF025916664Windows,Prime95,v24 final,(aka Wc1)
Verified2017-03-15DubslowCE607902962F0DF014550049Linux 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2024-05-30LaurVNFno factor TF: 68-69
2022-05-17Sid & AndyNFno factor TF: 72-73
2019-06-08monstNFno factor TF: 71-72
2017-03-15DubslowC-LLCE607902962F0DF0
2014-12-12ktonyNFno factor TF: 70-71
2014-12-08BdotNFno factor TF: 69-70
2013-10-01Carsten KossendeyNFno factor TF: 68-69
2008-03-22Stephan GruppC-LLCE607902962F0DF0
2008-02-03Stephan GruppNF-PM1B1=450000, B2=7762500
2006-12-18marnesNFno factor TF: 1-68
2001-03-05JossNFno factor TF: 1-56