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