Q: Is 538,404 a Prime Number?
A: No, 538,404 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 538404 can be evenly divided by 1 2 3 4 6 12 44,867 89,734 134,601 179,468 269,202 and 538,404, with no remainder.
Since 538,404 cannot be divided by just 1 and 538,404, it is not a prime number.