You have four fair 6-sided dice, each numbered from 1 to 6 (inclusive). If all four dice are rolled, the probability that the product of the rolled numbers is prime can be written as \frac{a}{b}, where a, b are relatively prime. What is a+b ?
You have four fair 6-sided dice, each numbered from 1 to 6 (inclusive). If all four dice are rolled, the probability that the product of the rolled numbers is prime can be written as \frac{a}{b}, where a, b are relatively prime. What is a+b ?