Q: Is 18,015 a Prime Number?

A: No, 18,015 is not a prime number.

Why is 18,015 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 18015 can be evenly divided by 1 3 5 15 1,201 3,603 6,005 and 18,015, with no remainder.

Since 18,015 cannot be divided by just 1 and 18,015, it is not a prime number.

Number	18,013	18,014	18,016	18,017
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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