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Composite numbers have more than two factors. So, the numbers which have two or less than two factors are not composite numbers. Numbers which have exactly two factors are prime numbers. 1 is an exceptional case because it is neither prime nor composite since it has only one factor which is 1.

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10y ago
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9y ago

Prime numbers are not composite.

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7y ago

prime numbers

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Q: Which numbers are not composite numbers?
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Related questions

Are composite numbers even numbers?

Not all composite numbers are even, but all even numbers except 2 are composite.


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Rectangular numbers are a subset of composite numbers. The squares of prime numbers will be composite but not rectangular.


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