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
33573347
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 271
P-1
B1 = 390000
B2 = 9847500
LL
StatusDateUserResidueShiftSoftware
Bad2006-11-28Fletcher BrownB7BDAF484A62C6BA4960706Windows,Prime95,v23,(aka WZ1)
Verified2014-09-11nokno45D5A3E909A67D228666351Windows 64-bit,Prime95,v27.9,build 1
Verified2014-12-02Dubslow45D5A3E909A67D2230707389Linux 64-bit,Prime95,v28.5,build 2
History
DateUserTypeResult
2019-11-10-anonymous-NFno factor TF: 72-73
2019-09-24Architects CubedNFno factor TF: 71-72
2014-12-02DubslowC-LL45D5A3E909A67D22
2014-09-11noknoC-LL45D5A3E909A67D22
2014-03-25bayanneNFno factor TF: 70-71
2012-12-18garoNFno factor TF: 69-70
2012-12-18garoNFno factor TF: 68-69
2006-11-28-anonymous-C-LLB7BDAF484A62C6BA
2004-11-03Team Prime RibNF-PM1B1=390000, B2=9847500
2004-11-03Team Prime RibNFno factor TF: 1-68