Q: Is 388,509 a Prime Number?
A: No, 388,509 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 388509 can be evenly divided by 1 3 11 33 61 183 193 579 671 2,013 2,123 6,369 11,773 35,319 129,503 and 388,509, with no remainder.
Since 388,509 cannot be divided by just 1 and 388,509, it is not a prime number.