Ononot — Let A and B be subsets of the set of positive integers less

Guest Session: 1 Question Remaining. Create Account to save progress.

Set Theorymedium

0:00.0

Let $A$ and $B$ be subsets of the set of positive integers less than or equal to 100: $A = \{n \in \mathbb{N} : 1 \leq n \leq 100 \text{ and } \gcd(n, 15) = 1\}$ $B = \{n \in \mathbb{N} : 1 \leq n \leq 100 \text{ and } \gcd(n, 10) = 1\}$ Find the cardinality of the intersection $A \cap B$ .