Q: Is 159,221 a Prime Number?
A: No, 159,221 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 159221 can be evenly divided by 1 89 1,789 and 159,221, with no remainder.
Since 159,221 cannot be divided by just 1 and 159,221, it is not a prime number.