Q: Is 256,255 a Prime Number?
A: No, 256,255 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 256255 can be evenly divided by 1 5 53 265 967 4,835 51,251 and 256,255, with no remainder.
Since 256,255 cannot be divided by just 1 and 256,255, it is not a prime number.