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
75675071
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 274
P-1
B1 = 630000
B2 = 12600000
LL
StatusDateUserResidueShiftSoftware
Verified2016-01-12Michael Hanscho4C63EB38E5A8D65738960331Linux 64-bit,Prime95,v28.7,build 1
Verified2025-02-11Bill Young4C63EB38E5A8D65711513877Windows 64-bit,Prime95,v29.4,build 7
History
DateUserTypeResult
2025-02-11Bill YoungC-LL4C63EB38E5A8D657
2016-01-12Michael HanschoC-LL4C63EB38E5A8D657
2015-11-01James HeinrichNF-PM1B1=630000, B2=12600000, E=6
2015-10-18apocalypseNFno factor TF: 74-75
2015-10-18apocalypseNFno factor TF: 73-74
2015-10-18apocalypseNFno factor TF: 72-73
2015-10-18apocalypseNFno factor TF: 71-72
2012-12-17Simon HarrisonNFno factor TF: 70-71
2011-03-21]mh[ VirtekNFno factor TF: 69-70
2011-03-16-anonymous-NFno factor TF: 68-69
2011-03-11-anonymous-NFno factor TF: 67-68
2011-03-09GrunwalderGIMPNFno factor TF: 66-67
2011-02-09GrunwalderGIMPNFno factor TF: 65-66
2010-08-09renxlNFno factor TF: 64-65
2009-04-23bayanneNFno factor TF: 63-64
2004-08-20MarzbugNFno factor TF: 1-63