Q: Is 231,221 a Prime Number?
A: No, 231,221 is 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 231221 can be evenly divided by 1 59 3,919 and 231,221, with no remainder.
Since 231,221 cannot be divided by just 1 and 231,221, it is not a prime number.