Q: Is 628,637 a Prime Number?
A: No, 628,637 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 628637 can be evenly divided by 1 223 2,819 and 628,637, with no remainder.
Since 628,637 cannot be divided by just 1 and 628,637, it is not a prime number.