Q: Is 85,509 a Prime Number?

A: No, 85,509 is not a prime number.

Why is 85,509 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 85509 can be evenly divided by 1 3 9 27 3,167 9,501 28,503 and 85,509, with no remainder.

Since 85,509 cannot be divided by just 1 and 85,509, it is not a prime number.

Number	85,507	85,508	85,510	85,511
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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