Q: Is 40,243 a Prime Number?

A: No, 40,243 is not a prime number.

Why is 40,243 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 40243 can be evenly divided by 1 7 5,749 and 40,243, with no remainder.

Since 40,243 cannot be divided by just 1 and 40,243, it is not a prime number.

Number	40,241	40,242	40,244	40,245
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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