Q: Is 172,508 a Prime Number?

A: No, 172,508 is not a prime number.

Why is 172,508 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 172508 can be evenly divided by 1 2 4 7 14 28 61 101 122 202 244 404 427 707 854 1,414 1,708 2,828 6,161 12,322 24,644 43,127 86,254 and 172,508, with no remainder.

Since 172,508 cannot be divided by just 1 and 172,508, it is not a prime number.

Number	172,506	172,507	172,509	172,510
Prime?	no	yes	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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