[Guest]

What is the only number the is prime and composite

and positive and negitive at the same time

0

[peace*out]

SO i guess the real riddle is this:

What is neither prime nor composte, neither positive, nor negative

0;

Edited November 20, 2008 by peace*out

[Faizaan]

Quick clarification.

1. Zero is not positive nor negative. It's a neutral number.

2. Zero divided by anything other than zero is zero. Anything divided by zero is undefined.

3. Positive number: Mathematics. noting a quantity greater than zero. (directly from dictionary)

4. Negative number: Mathematics. Of or relating to a quantity less than zero. (directly from dictionary)

5. Using this info. we can conclude that zero is a neutral number.

And zero is not a prime nor composite number. Because it can't be divided by itself, which breaks the prime number rule. And, It can't be divided into separate numbers.