Q: Is 78,243 a Prime Number?

A: No, 78,243 is not a prime number.

Why is 78,243 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 78243 can be evenly divided by 1 3 11 33 2,371 7,113 26,081 and 78,243, with no remainder.

Since 78,243 cannot be divided by just 1 and 78,243, it is not a prime number.

Number	78,241	78,242	78,244	78,245
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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