Q: Is 513,399 a Prime Number?
A: No, 513,399 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 513399 can be evenly divided by 1 3 19 57 9,007 27,021 171,133 and 513,399, with no remainder.
Since 513,399 cannot be divided by just 1 and 513,399, it is not a prime number.