What is the difference between a prime and a composite number?

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What is the difference between a prime and a composite number?

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Answer 1 · 2016-03-30T08:02:22

Please see below.

Explanation:

A prime number has no other factor other than $1$ and itself. For example, $5$ has only ${1,5}$ as its factor. Similar is the position for $13$ , $43$ , $79$ , $101$ , $223$ etc.

Composite numbers on the other hand are those who have factors other than one and itself like $6$ , $39$ , $87$ , $553$ , $667$ etc. as factors of $6$ are ${1,2,3,6}$ , that of $39$ are ${1,3,13,39}$ , that of $87$ are ${1,3,29,87}$ , that of $553$ are ${1,7,79,553}$ and that of $667$ are ${1,23,29,667}$ .

$1$ is considered neither as prime nor as composite.

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What is the difference between a prime and a composite number?

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