Q: Is 628,315 a Prime Number?
A: No, 628,315 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 628315 can be evenly divided by 1 5 53 265 2,371 11,855 125,663 and 628,315, with no remainder.
Since 628,315 cannot be divided by just 1 and 628,315, it is not a prime number.