Calculate the Number Defined by Prime Factors 7 and 2

To solve this problem, we need to find the number that corresponds to the given prime factors: 7 and 2.

Steps to solve:

• Step 1: Identify the given prime factors, which are $2$ and $7$.
• Step 2: Multiply the prime factors together. In mathematical terms, this is expressed as:
• $2 \times 7 = 14$

Therefore, the solution to the problem is that the number whose prime factors are 7 and 2 is $14$.

The answer is clearly $\boxed{14}$, corresponding to choice (2).