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
42454033
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 710000
B2 = 710000
LL
StatusDateUserResidueShiftSoftware
Verified2008-05-11Stig M. Valstad272A23F809F3542813798853Windows,Prime95,v24 final,(aka Wc1)
Verified2017-11-05Dubslow272A23F809F3542817992369Linux 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2018-08-12-anonymous-NFno factor TF: 72-73
2017-11-05DubslowC-LL272A23F809F35428
2015-08-27-anonymous-NFno factor TF: 71-72
2015-03-25Mark RoseNFno factor TF: 70-71
2015-02-09Andrew BNFno factor TF: 69-70
2014-01-02LaurVNFno factor TF: 68-69
2008-05-10stigmvC-LL272A23F809F35428
2008-03-22stigmvNF-PM1B1=710000
2007-06-15precius1NFno factor TF: 1-68