Q: Is 16,663 a Prime Number?

A: No, 16,663 is not a prime number.

Why is 16,663 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 16663 can be evenly divided by 1 19 877 and 16,663, with no remainder.

Since 16,663 cannot be divided by just 1 and 16,663, it is not a prime number.

Number	16,661	16,662	16,664	16,665
Prime?	yes	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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