Q: Is 173,143 a Prime Number?

A: No, 173,143 is not a prime number.

Why is 173,143 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 173143 can be evenly divided by 1 41 103 1,681 4,223 and 173,143, with no remainder.

Since 173,143 cannot be divided by just 1 and 173,143, it is not a prime number.

Number	173,141	173,142	173,144	173,145
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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