Two fair six-sided dice are rolled. What is the probability that the product of the two numbers is a composite number?

Pls answer as a common fraction.

I thought it was 5/6, but it was wrong. Here is my reasoning:

probability the product is NOT composite= rolling 1 on one dice and 2, 3, 5 on the other.

36 different possibilities.

You can roll 1 on dice num. 1 or dice num. 2

(2x3)/36different possibilities

1-1/6=5/6

;-;

Guest May 6, 2020

edited by
Guest
May 6, 2020