Q: Is 538,521 a Prime Number?
A: No, 538,521 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 538521 can be evenly divided by 1 3 73 219 2,459 7,377 179,507 and 538,521, with no remainder.
Since 538,521 cannot be divided by just 1 and 538,521, it is not a prime number.