Re: prime numbers and African artifact
Erik Wahlstrom (email@example.com)
13 Jul 1995 00:47:59 GMT
In article <firstname.lastname@example.org>, David Ullrich <email@example.com> writes:
> firstname.lastname@example.org (Craig A. Johnston) wrote:
> >In article <henryDBK686.Ev4@netcom.com>, Henry Polard <email@example.com> wrote:
> >>In article <firstname.lastname@example.org>, Michael Hyman <email@example.com> wrote:
> >>>Rick Hawkins (firstname.lastname@example.org) wrote:
> >>>: >> Prime numbers are those numbers which can NOT be divided evenly by
> >>>: >> another whole number... 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31...
> >>>: >Hurrah!
> >>>: But only half- credit, since it's the wrong answer. 1 is not prime.
> >>>On a related topic, the binary system has the interesting property that
> >>>all numbers which end in 1 are prime: 001, 011, 101, 111, ...
> >>Going further, the next number that ends in 1 is 1001 = 9, which is
> >>3 times 3, and therefore not prime.
> >>Perhaps you meant to say that in the binary system, all numbers
> >>that end in 1 are odd?
> >Um, this is the same troll, in binary. Lemme help you with that hook...
> What's the easy way to show that 254365465431652436514232 is not
> prime again?
Check the last digit, It's an enen number, Therefore not a prime.