Q: Is 628,636 a Prime Number?
A: No, 628,636 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 628636 can be evenly divided by 1 2 4 23 46 92 6,833 13,666 27,332 157,159 314,318 and 628,636, with no remainder.
Since 628,636 cannot be divided by just 1 and 628,636, it is not a prime number.