Q: Is 17,685 a Prime Number?

A: No, 17,685 is not a prime number.

Why is 17,685 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 17685 can be evenly divided by 1 3 5 9 15 27 45 131 135 393 655 1,179 1,965 3,537 5,895 and 17,685, with no remainder.

Since 17,685 cannot be divided by just 1 and 17,685, it is not a prime number.

Number	17,683	17,684	17,686	17,687
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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