What is the set A, where A = x ∈ N: 13 < x < 17 and x is a prime number?

Step 1: Analyze Question 1.
The set $A$ is defined as $A = \{x \in N: 13 < x < 17 \text{ এবং } x \text{ মৌলিক সংখ্যা}\}$.
This means $x$ is a natural number between 13 and 17 (exclusive) and $x$ is a prime number.
The natural numbers between 13 and 17 are 14, 15, 16.

• 14 is not prime ($14 = 2 \times 7$).
• 15 is not prime ($15 = 3 \times 5$).
• 16 is not prime ($16 = 2 \times 8$).