Q: Is 628,738 a Prime Number?
A: No, 628,738 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 628738 can be evenly divided by 1 2 11 22 28,579 57,158 314,369 and 628,738, with no remainder.
Since 628,738 cannot be divided by just 1 and 628,738, it is not a prime number.