Q: Is 628,804 a Prime Number?
A: No, 628,804 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 628804 can be evenly divided by 1 2 4 11 22 31 44 62 124 341 461 682 922 1,364 1,844 5,071 10,142 14,291 20,284 28,582 57,164 157,201 314,402 and 628,804, with no remainder.
Since 628,804 cannot be divided by just 1 and 628,804, it is not a prime number.