Q: Is 664,804 a Prime Number?
A: No, 664,804 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 664804 can be evenly divided by 1 2 4 7 14 28 23,743 47,486 94,972 166,201 332,402 and 664,804, with no remainder.
Since 664,804 cannot be divided by just 1 and 664,804, it is not a prime number.