Q: Is 628 a Prime Number?
A: No, 628 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 628 can be evenly divided by 1 2 4 157 314 and 628, with no remainder.
Since 628 cannot be divided by just 1 and 628, it is not a prime number.