Q: Is 520,436 a Prime Number?
A: No, 520,436 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 520436 can be evenly divided by 1 2 4 7 14 28 18,587 37,174 74,348 130,109 260,218 and 520,436, with no remainder.
Since 520,436 cannot be divided by just 1 and 520,436, it is not a prime number.