Q: Is 388,815 a Prime Number?
A: No, 388,815 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 388815 can be evenly divided by 1 3 5 7 15 21 23 35 49 69 105 115 147 161 245 345 483 529 735 805 1,127 1,587 2,415 2,645 3,381 3,703 5,635 7,935 11,109 16,905 18,515 25,921 55,545 77,763 129,605 and 388,815, with no remainder.
Since 388,815 cannot be divided by just 1 and 388,815, it is not a prime number.