Q: Is 339,221 a Prime Number?
A: No, 339,221 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 339221 can be evenly divided by 1 61 67 83 4,087 5,063 5,561 and 339,221, with no remainder.
Since 339,221 cannot be divided by just 1 and 339,221, it is not a prime number.