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
33557807
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 271
P-1
B1 = 455000
B2 = 8986250
LL
StatusDateUserResidueShiftSoftware
Verified2004-06-21Stephan Grupp2206A6A3D7A75BDD29623262Windows,Prime95,v23,(aka WZ1)
Verified2014-11-26Dubslow2206A6A3D7A75BDD9980587Linux 64-bit,Prime95,v28.5,build 2
History
DateUserTypeResult
2019-11-10-anonymous-NFno factor TF: 72-73
2019-05-07Architects CubedNF-PM1B1=455000, B2=8986250, E=12
2019-05-04Architects CubedNFno factor TF: 71-72
2014-11-26DubslowC-LL2206A6A3D7A75BDD
2013-05-02GrunwalderGIMPNFno factor TF: 70-71
2013-05-02GrunwalderGIMPNFno factor TF: 69-70
2012-10-13NumberwangNFno factor TF: 68-69
2004-06-21Stephan GruppC-LL2206A6A3D7A75BDD
2003-08-25-anonymous-NF-PM1B1=495000
2003-08-08-anonymous-NFno factor TF: 1-68