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
38174659
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 271
P-1
B1 = 425000
B2 = 9881250
LL
StatusDateUserResidueShiftSoftware
Verified2007-10-17Jay MaiuranoE69F15FFE28B6EB65322238Windows,Prime95,v24 final,(aka Wc1)
Verified2016-11-25DubslowE69F15FFE28B6EB630985329Linux 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2022-06-27RichD0NFno factor TF: 72-73
2018-10-14Architects CubedNFno factor TF: 71-72
2016-11-25DubslowC-LLE69F15FFE28B6EB6
2014-12-02monstNFno factor TF: 70-71
2014-10-26HBendtzNFno factor TF: 69-70
2007-10-17ANONYMOUSC-LLE69F15FFE28B6EB6
2007-07-24ANONYMOUSNF-PM1B1=425000, B2=9881250
2006-07-10-anonymous-NFno factor TF: 1-69
2003-09-14-anonymous-NFno factor TF: 1-59
2003-09-09-anonymous-NFno factor TF: 1-60