Difference between revisions of "Prime"
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| − | A number p>1 is prime if it has no divisor other than 1 and itself. Note that 1 is usually defined as being neither prime nor [[composite]] because it is its only factor among the [[natural numbers]]. 0 is also defined as neither because any number times 0 is equal to 0, so it would have an "infinite" number of factors. | + | A number p>1 is prime if it has no divisor other than 1 and itself. Note that 1 is usually defined as being neither prime nor [[composite number|composite]] because it is its only factor among the [[natural number|natural numbers]]. 0 is also defined as neither because any number times 0 is equal to 0, so it would have an "infinite" number of factors. |
Revision as of 16:25, 19 June 2006
Prime Number: A number p>1 is prime if it has no divisor other than 1 and itself. Note that 1 is usually defined as being neither prime nor composite because it is its only factor among the natural numbers. 0 is also defined as neither because any number times 0 is equal to 0, so it would have an "infinite" number of factors.
