user=juhehe [2016-08-03 01:29:03] 507*2^1431558-1 is not prime. Res64: 4195890BB914CAA0 Time : 0.0 sec. user=juhehe [2016-08-03 15:28:43] 513*2^1431558-1 is not prime. Res64: A1BFB3E324A52C6A Time : 0.0 sec.