Q: Is 505,808 a Prime Number?
A: No, 505,808 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 505808 can be evenly divided by 1 2 4 8 16 101 202 313 404 626 808 1,252 1,616 2,504 5,008 31,613 63,226 126,452 252,904 and 505,808, with no remainder.
Since 505,808 cannot be divided by just 1 and 505,808, it is not a prime number.