Q: Is 538,604 a Prime Number?
A: No, 538,604 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 538604 can be evenly divided by 1 2 4 11 22 44 12,241 24,482 48,964 134,651 269,302 and 538,604, with no remainder.
Since 538,604 cannot be divided by just 1 and 538,604, it is not a prime number.