Q: Is 538,491 a Prime Number?
A: No, 538,491 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 538491 can be evenly divided by 1 3 179,497 and 538,491, with no remainder.
Since 538,491 cannot be divided by just 1 and 538,491, it is not a prime number.