Q: Is 646,790 a Prime Number?
A: No, 646,790 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 646790 can be evenly divided by 1 2 5 10 64,679 129,358 323,395 and 646,790, with no remainder.
Since 646,790 cannot be divided by just 1 and 646,790, it is not a prime number.