Q: Is 255,808 a Prime Number?
A: No, 255,808 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 255808 can be evenly divided by 1 2 4 7 8 14 16 28 32 56 64 112 224 448 571 1,142 2,284 3,997 4,568 7,994 9,136 15,988 18,272 31,976 36,544 63,952 127,904 and 255,808, with no remainder.
Since 255,808 cannot be divided by just 1 and 255,808, it is not a prime number.