Q: Is 520 a Prime Number?
A: No, 520 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 520 can be evenly divided by 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 and 520, with no remainder.
Since 520 cannot be divided by just 1 and 520, it is not a prime number.