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
50676581
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 273
P-1
B1 = 815000
B2 = 815000
LL
StatusDateUserResidueShiftSoftware
Verified2011-02-02Reed_YoungDCF422E57E586CE329400463Linux 64-bit,Prime95,v25.9,build 4
Verified2018-02-28-anonymous-DCF422E57E586CE34929010Windows 64-bit,Prime95,v29.4,build 8
History
DateUserTypeResult
2018-02-28-anonymous-C-LLDCF422E57E586CE3
2016-01-02AirSquirrelsNFno factor TF: 72-73
2015-12-04-anonymous-NFno factor TF: 71-72
2015-07-17Mark RoseNFno factor TF: 70-71
2015-01-09monstNFno factor TF: 69-70
2011-02-02Reed_YoungC-LLDCF422E57E586CE3
2010-10-17Reed_YoungNF-PM1B1=815000
2008-11-18precius1NFno factor TF: 1-69
2008-10-27precius1NFno factor TF: 1-69
2008-09-10DerekNFno factor TF: 1-64
2003-11-08-anonymous-NFno factor TF: 1-60
2003-08-31-anonymous-NFno factor TF: 1-59
2003-08-25-anonymous-NFno factor TF: 1-59
2002-01-08-anonymous-NFno factor TF: 1-58
2001-04-21-anonymous-NFno factor TF: 1-57
2000-04-19-anonymous-NFno factor TF: 1-56
2000-02-09-anonymous-NFno factor TF: 1-54
2000-01-04-anonymous-NFno factor TF: 1-53
1999-10-15-anonymous-NFno factor TF: 1-53