Q: Is 388,518 a Prime Number?
A: No, 388,518 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 388518 can be evenly divided by 1 2 3 6 13 17 26 34 39 51 78 102 221 293 442 586 663 879 1,326 1,758 3,809 4,981 7,618 9,962 11,427 14,943 22,854 29,886 64,753 129,506 194,259 and 388,518, with no remainder.
Since 388,518 cannot be divided by just 1 and 388,518, it is not a prime number.