Set Theoryeasy
0:00.0

Let the universal set be the set of positive integers Z+\mathbb{Z}^+. Let A={xZ+:x is a factor of 12}A = \{x \in \mathbb{Z}^+ : x \text{ is a factor of 12}\} and B={xZ+:x is a factor of 18}B = \{x \in \mathbb{Z}^+ : x \text{ is a factor of 18}\}. Find the set difference ABA \setminus B.