Difference between revisions of "Composite number"

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Simply stated, a composite number is a [[positive integer]] with at least one [[divisor]] different from 1 and itself.
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Simply stated, a composite number is a [[positive integer]] with at least one [[divisor]] different from 1 and itself.  Some composite numbers are <math>4=2^2</math> and <math>12=2\times 6=3\times 4</math>.  
  
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.
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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.
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Any poitive integer is prime, composite, or 1.
  
 
==See also==
 
==See also==
 
* [[Number Theory]]
 
* [[Number Theory]]

Revision as of 17:45, 24 June 2006

Simply stated, a composite number is a positive integer with at least one divisor different from 1 and itself. Some composite numbers are $4=2^2$ and $12=2\times 6=3\times 4$.

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.

Any poitive integer is prime, composite, or 1.

See also

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