Q: Is 513,787 a Prime Number?
A: No, 513,787 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 513787 can be evenly divided by 1 101 5,087 and 513,787, with no remainder.
Since 513,787 cannot be divided by just 1 and 513,787, it is not a prime number.