Q: Is 505,566 a Prime Number?
A: No, 505,566 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 505566 can be evenly divided by 1 2 3 6 9 18 28,087 56,174 84,261 168,522 252,783 and 505,566, with no remainder.
Since 505,566 cannot be divided by just 1 and 505,566, it is not a prime number.