Q: Is 522,221 a Prime Number?
A: No, 522,221 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 522221 can be evenly divided by 1 7 61 427 1,223 8,561 74,603 and 522,221, with no remainder.
Since 522,221 cannot be divided by just 1 and 522,221, it is not a prime number.