Q: Is 428 a Prime Number?
A: No, 428 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 428 can be evenly divided by 1 2 4 107 214 and 428, with no remainder.
Since 428 cannot be divided by just 1 and 428, it is not a prime number.