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If the number is divisible by any number and the quotient comes out to a whole number, then that number is composite. The number is prime when divided by a number, the answer is a decimal, then the number is prime.

A Prime number has exactly two factors, 1 and the number itself. Any number having more factors is a composite number.

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Factoring and Multiples

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Q: How do you determine if a number is prime or composite?
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