Q: Is 388,689 a Prime Number?
A: No, 388,689 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 388689 can be evenly divided by 1 3 7 21 83 223 249 581 669 1,561 1,743 4,683 18,509 55,527 129,563 and 388,689, with no remainder.
Since 388,689 cannot be divided by just 1 and 388,689, it is not a prime number.