
Re: prime numbers and African artifact
Henry Polard (henry@netcom.com)
Tue, 11 Jul 1995 15:40:54 GMT
In article <3tso8h$giu@netaxs.com>, Michael Hyman <mikeh@netaxs.com> wrote:
>Rick Hawkins (rhawkins@iastate.edu) 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?
Henry Polard  It's as easy as 3.141592654......
