Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
74638393
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 274
P-1
B1 = 690000
B2 = 14490000
LL
StatusDateUserResidueShiftSoftware
Bad2016-10-04e-mmanuel520816A7BC5DC4F746607822Linux 64-bit,Prime95,v28.9,build 2
Verified2016-11-25endless_mikeE8FA22B5EE61CF2F59151157Windows 64-bit,Prime95,v28.9,build 2
Verified2017-01-14MadPoo 🙂E8FA22B5EE61CF2F60429701Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2017-01-14MadPoo 🙂C-LLE8FA22B5EE61CF2F
2016-11-25endless_mikeC-LLE8FA22B5EE61CF2F
2016-10-04e-mmanuelC-LL520816A7BC5DC4F7
2016-07-08-anonymous-NFno factor TF: 74-75
2016-04-02Mark RoseNFno factor TF: 57-64
2014-12-24David HruskaNF-PM1B1=690000, B2=14490000, E=12
2014-12-06The MawnNFno factor TF: 73-74
2013-12-22processinfoNFno factor TF: 71-72
2013-12-22processinfoNFno factor TF: 72-73
2013-12-22processinfoNFno factor TF: 70-71
2013-05-14SMoffatNFno factor TF: 69-70
2010-09-28Razor_FX_IINFno factor TF: 68-69
2010-09-25Razor_FX_IINFno factor TF: 67-68
2010-09-22Martin RehrmannNFno factor TF: 66-67
2010-09-12pavlpNFno factor TF: 65-66
2010-09-10Penguin66NFno factor TF: 64-65
2002-04-20JossNFno factor TF: 1-57