>   Prime numbers and mutually prime numbers are
 > fundamental to all modern encrytion algorithms,
 > especially public key encrytion where the two keys
 > must be mutually prime.

    Oi, Weh! So much for Cicero and the enigma machine then. :-) It has
been fundamental to modern security theory for two millennia that no secret
is safe if two people know it. :-)

    Yes ... I guess there are uses for most things. I just thought it might
make an amusing plot for Ray Bradbury or one of that genre.

Bill.

---