Q: Is 820,790 a Prime Number?
A: No, 820,790 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 820790 can be evenly divided by 1 2 5 10 211 389 422 778 1,055 1,945 2,110 3,890 82,079 164,158 410,395 and 820,790, with no remainder.
Since 820,790 cannot be divided by just 1 and 820,790, it is not a prime number.