user=unconnected [2021-03-04 00:12:27] 567*2^1606758-1 is not prime. Res64: 7A5EC50A311F9390 Time : 0.0 sec. user=mdettweiler [2021-03-04 23:23:10] 411*2^1606759-1 is not prime. Res64: 8D2E4EB7FA9C3205 Time : 0.0 sec.