A positive integer is called nice if it is a multiple of $6.$ A certain nice positive integer $n$ has exactly $8$ positive divisors. How many prime numbers are divisors of $n?$
has multiple answers (2^3 * 3 works, but 2 * 3 * 5 also works).
24, it has divisers 1, 2, 3, 4, 6, 8, 12, 24