Q: Is 172,789 a Prime Number?

A: No, 172,789 is not a prime number.

Why is 172,789 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 172789 can be evenly divided by 1 131 1,319 and 172,789, with no remainder.

Since 172,789 cannot be divided by just 1 and 172,789, it is not a prime number.

Number	172,787	172,788	172,790	172,791
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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