Q: Is 520,604 a Prime Number?
A: No, 520,604 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 520604 can be evenly divided by 1 2 4 7 14 28 18,593 37,186 74,372 130,151 260,302 and 520,604, with no remainder.
Since 520,604 cannot be divided by just 1 and 520,604, it is not a prime number.