Q: Is 513,281 a Prime Number?
A: No, 513,281 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 513281 can be evenly divided by 1 17 109 277 1,853 4,709 30,193 and 513,281, with no remainder.
Since 513,281 cannot be divided by just 1 and 513,281, it is not a prime number.