Q: Is 231,509 a Prime Number?

A: No, 231,509 is not a prime number.

Why is 231,509 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 231509 can be evenly divided by 1 37 6,257 and 231,509, with no remainder.

Since 231,509 cannot be divided by just 1 and 231,509, it is not a prime number.

Number	231,507	231,508	231,510	231,511
Prime?	no	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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