user=mdettweiler [2016-08-23 16:15:04] 449*2^1431656-1 is not prime. Res64: 1F678A1E57B7E74A Time : 0.0 sec. user=odicin [2016-08-23 20:54:35] 507*2^1431656-1 is not prime. Res64: 676AE8FE7E560229 Time : 0.0 sec.