Q: Is 420,808 a Prime Number?
A: No, 420,808 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 420808 can be evenly divided by 1 2 4 8 23 46 92 184 2,287 4,574 9,148 18,296 52,601 105,202 210,404 and 420,808, with no remainder.
Since 420,808 cannot be divided by just 1 and 420,808, it is not a prime number.