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
73850519
Composite: proven not-prime with Lucas-Lehmer test
No factors below 280
TF target 274
P-1
B1 = 2000000
B2 = 30000000
LL
StatusDateUserResidueShiftSoftware
Verified2015-09-27AirSquirrelsA4A0717244D30CF637535148CUDALucas v2.05.1
Verified2015-09-27MadPoo 🙂A4A0717244D30CF641957778Windows 64-bit,Prime95,v26,(aka We4)
Verified2015-09-29James HeinrichA4A0717244D30CF64812CUDALucas v2.05.1
History
DateUserTypeResult
2015-10-13AirSquirrelsNF-PM1B1=2000000, B2=30000000
2015-09-29James HeinrichC-LLA4A0717244D30CF6
2015-09-28AirSquirrelsNFno factor TF: 79-80
2015-09-27MadPoo 🙂C-LLA4A0717244D30CF6
2015-09-27AirSquirrelsC-LLA4A0717244D30CF6
2015-09-27AirSquirrelsNFno factor TF: 78-79
2015-09-25AirSquirrelsNFno factor TF: 77-78
2015-09-24AirSquirrelsNFno factor TF: 76-77
2015-09-24AirSquirrelsNFno factor TF: 75-76
2015-02-01TheJudgerNF-PM1B1=635000, B2=12858750, E=12
2015-01-23RichD0NFno factor TF: 74-75
2014-12-11kdgehmanNFno factor TF: 73-74
2014-12-11kdgehmanNFno factor TF: 72-73
2014-12-11kdgehmanNFno factor TF: 71-72
2013-08-04Ryan PropperNFno factor TF: 70-71
2012-12-13igNFno factor TF: 69-70
2010-09-02-anonymous-NFno factor TF: 68-69
2010-08-26MarzbugNFno factor TF: 67-68
2010-08-24MarzbugNFno factor TF: 66-67
2010-08-20Nick WagersNFno factor TF: 65-66
2010-08-15Simon W.NFno factor TF: 64-65
2008-07-16George WoltmanNFno factor TF: 1-64
2002-03-31JossNFno factor TF: 1-57