Q: Is 231,921 a Prime Number?

A: No, 231,921 is not a prime number.

Why is 231,921 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 231921 can be evenly divided by 1 3 9 73 219 353 657 1,059 3,177 25,769 77,307 and 231,921, with no remainder.

Since 231,921 cannot be divided by just 1 and 231,921, it is not a prime number.

Number	231,919	231,920	231,922	231,923
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).

General Questions

Factoring Questions

Calculation Questions

Miscellaneous Questions