# Is 9 a composite number?

9 is a composite number as number 3 is a factor of 9 other than 1 & 9.

A whole number that can be divided exactly by numbers other than 1 or itself. Example: 9 can be divided exactly by 3 (as well as 1 and 9), so 9 is a composite number.

But 7 cannot be divided exactly (except by 1 and 7), so is NOT a composite number (it is a prime number).

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No, 9 is not a composite number.

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