Thread: Odd primes
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Old 2007-10-09, 06:21   #3
Mr. P-1
 
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Jun 2003

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Quote:
Originally Posted by jasong View Post
Puzzle: Prove that all primes, including 2, are odd.

You have to think outside the box for this one. It is possible to prove, although mathematical purists(snobs?) won't like the proof.
All primes except 2 are ODD (i.e., not divisible by 2).

2 is the ODD one out.
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