Q: Is 191,021 a Prime Number?

A: Yes, 191,021 is a prime number.

Why is 191,021 a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 191021 can be evenly divided by 1 and 191,021, with no remainder.

Since 191,021 can be divided by just 1 and 191,021, it is a prime number.

Number	191,019	191,020	191,022	191,023
Prime?	no	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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