Q: Is 428,243 a Prime Number?
A: No, 428,243 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 428243 can be evenly divided by 1 29 14,767 and 428,243, with no remainder.
Since 428,243 cannot be divided by just 1 and 428,243, it is not a prime number.