Find the probability of rolling factors of 12.

The factors of 12 are 1,2,3,4,6, and 12. Since the greatest number on a dice is 6, it is only possible to roll a 1, 2, 3, 4, and 6. A dice has a total of 6 sides and the factors of 12 are already 5, so the probability of rolling a factor of 12 is 5/6.