# Difference between revisions of "Composite number"

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A '''composite number''' is a positive [[integer]] greater than 1 which is not a [[prime number]]. Composite numbers can always be written as a product of prime numbers, which represent a [[prime factorization]].<ref>http://mathworld.wolfram.com/CompositeNumber.html</ref> For example, the prime factorization of the composite number 42 is 2 x 3 x 7. | A '''composite number''' is a positive [[integer]] greater than 1 which is not a [[prime number]]. Composite numbers can always be written as a product of prime numbers, which represent a [[prime factorization]].<ref>http://mathworld.wolfram.com/CompositeNumber.html</ref> For example, the prime factorization of the composite number 42 is 2 x 3 x 7. | ||

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+ | Related to composite numbers are ''[[highly composite numbers]]'' (HCN's). The HCN's are the higher order of the two types of numbers that are the opposite to [[prime]] numbers. | ||

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+ | ==Highly Composite Numbers== | ||

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==References== | ==References== |

## Revision as of 00:58, 15 January 2017

A **composite number** is a positive integer greater than 1 which is not a prime number. Composite numbers can always be written as a product of prime numbers, which represent a prime factorization.^{[1]} For example, the prime factorization of the composite number 42 is 2 x 3 x 7.

Related to composite numbers are *highly composite numbers* (HCN's). The HCN's are the higher order of the two types of numbers that are the opposite to prime numbers.