Q: Is 78,991 a Prime Number?

A: No, 78,991 is not a prime number.

Why is 78,991 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 78991 can be evenly divided by 1 11 43 167 473 1,837 7,181 and 78,991, with no remainder.

Since 78,991 cannot be divided by just 1 and 78,991, it is not a prime number.

Number	78,989	78,990	78,992	78,993
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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