Q: Is 428,562 a Prime Number?
A: No, 428,562 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 428562 can be evenly divided by 1 2 3 6 9 18 29 58 87 174 261 522 821 1,642 2,463 4,926 7,389 14,778 23,809 47,618 71,427 142,854 214,281 and 428,562, with no remainder.
Since 428,562 cannot be divided by just 1 and 428,562, it is not a prime number.