Q: Is 123,729 a Prime Number?

A: No, 123,729 is not a prime number.

Why is 123,729 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 123729 can be evenly divided by 1 3 41,243 and 123,729, with no remainder.

Since 123,729 cannot be divided by just 1 and 123,729, it is not a prime number.

Number	123,727	123,728	123,730	123,731
Prime?	yes	no	no	yes

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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