Q: Is 17,865 a Prime Number?

A: No, 17,865 is not a prime number.

Why is 17,865 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 17865 can be evenly divided by 1 3 5 9 15 45 397 1,191 1,985 3,573 5,955 and 17,865, with no remainder.

Since 17,865 cannot be divided by just 1 and 17,865, it is not a prime number.

Number	17,863	17,864	17,866	17,867
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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