collins@newton.apple.com (Scott Collins) once said: CO> >For any number n, if the square root of (n!)+1 is an integer, it is also CO> >prime. (This is interesting, but rather useless in practice) CO> CO> For any number a, 1<a<=n, n! mod a == 0; therefore, n!+1 mod a == 1. n!+1 CO> is prime. Prime numbers don't have integral square roots. CO> CO> CO> Scott Collins | "That's not fair!" -- Sarah CO> | "You say that so often. I wonder what your basis CO> 408.862.0540 | for comparison is." -- Goblin King CO> ................|.................................................... CO> BUSINESS. fax:974.6094 R254(IL5-2N) collins@newton.apple.com CO> Apple Computer, Inc. 5 Infinite Loop, MS 305-2D Cupertino, CA 95014 CO> ..................................................................... CO> PERSONAL. 408.257.1746 1024:669687 catalyst@netcom.com CO> CO> --- "In a Time/CNN poll of 1,000 Americans conducted last week by Yankelovich Partners, two-thirds said it was more important to protect the privacy of phone calls than to preserve the ability of police to conduct wiretaps. When informed about the Clipper Chip, 80% said they opposed it." - Philip Elmer-Dewitt, "Who Should Keep the Keys", TIME, Mar. 4 1994 == To get PGP, FTP /pub/unix/security/crypt/pgp23A.zip from ftp.funet.fi ==