Q: Is 509,255 a Prime Number?
A: No, 509,255 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 509255 can be evenly divided by 1 5 179 569 895 2,845 101,851 and 509,255, with no remainder.
Since 509,255 cannot be divided by just 1 and 509,255, it is not a prime number.