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Re: prime numbers and African artifact
David Ullrich (ullrich@math.okstate.edu)
11 Jul 1995 19:44:28 GMT
caj@tower.stc.housing.washington.edu (Craig A. Johnston) wrote:
>In article <henryDBK686.Ev4@netcom.com>, Henry Polard <henry@netcom.com> wrote:
>>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?
>>
>
>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?
Anon
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