user=mdettweiler
[2021-03-21 02:36:56]
447*2^1606782-1 is not prime.  Res64: D0B00F6E48A323C3  Time : 0.0 sec.
user=mdettweiler
[2021-03-21 04:51:31]
503*2^1606782-1 is not prime.  Res64: ABEF2AE29D2CAEB4  Time : 0.0 sec.