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
67428367
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 274
P-1
B1 = 610000
B2 = 11895000
LL
StatusDateUserResidueShiftSoftware
Verified2015-08-19Kyle Z SchmidtE887F8D385C08DE319700659Windows 64-bit,Prime95,v28.5,build 2
Verified2024-01-03murakikunE887F8D385C08DE363552963Linux 64-bit,Prime95,v30.8,build 18
History
DateUserTypeResult
2024-01-03murakikunC-LLE887F8D385C08DE3
2015-08-19Kyle Z SchmidtC-LLE887F8D385C08DE3
2015-07-25NickOfTimeNFno factor TF: 74-75
2014-03-18Kevin JagetNF-PM1B1=610000, B2=11895000, E=6
2014-03-08RichD0NFno factor TF: 73-74
2014-03-06RichD0NFno factor TF: 72-73
2012-09-20SWL551NFno factor TF: 71-72
2012-09-18SWL551NFno factor TF: 70-71
2012-04-13trifNFno factor TF: 69-70
2010-06-12RaelNFno factor TF: 68-69
2010-05-30Per JessenNFno factor TF: 67-68
2010-05-27Per JessenNFno factor TF: 66-67
2010-05-24Per JessenNFno factor TF: 65-66
2010-05-21SMoffatNFno factor TF: 64-65
2008-12-09Wojciech FlorekNFno factor TF: 63-64