Q: Is 520,513 a Prime Number?
A: No, 520,513 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 520513 can be evenly divided by 1 7 23 53 61 161 371 427 1,219 1,403 3,233 8,533 9,821 22,631 74,359 and 520,513, with no remainder.
Since 520,513 cannot be divided by just 1 and 520,513, it is not a prime number.