user=unconnected [2021-01-27 14:55:39] 539*2^1606664-1 is not prime. Res64: 8EC1045DF6051728 Time : 0.0 sec. user=unconnected [2021-01-27 19:51:46] 585*2^1606664-1 is not prime. Res64: F35710F3546D5E1C Time : 0.0 sec.