Difference between revisions of "Composite number"

(Links, and fixed an inaccuracy. (A composite has at least one proper divisor, not at least 2))
(No, 1 is a proper divisor, so you require at least two proper divisors.)
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Simply stated, a composite number is the exact opposite of a [[prime | prime number]]. It is any number with at least one [[proper divisor | proper divisors]].  
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Simply stated, a composite number is the exact opposite of a [[prime | prime number]]. It is any number with at least two [[proper divisor | proper divisors]].  
  
 
Note that the number one is neither prime nor composite. It follows that two is the only even prime number, three is the only multiple of three that is prime, and so on.
 
Note that the number one is neither prime nor composite. It follows that two is the only even prime number, three is the only multiple of three that is prime, and so on.

Revision as of 16:13, 22 June 2006

Simply stated, a composite number is the exact opposite of a prime number. It is any number with at least two proper divisors.

Note that the number one is neither prime nor composite. It follows that two is the only even prime number, three is the only multiple of three that is prime, and so on.

See also

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