**Answer:**

A. 1 and 17

**Step-by-step explanation:**

When you multiply 1 and 17, the answer will be 17. Since 17 is a prime number, there are no other factors apart from 1 and 17.

**Answer:**

A. 1 and 17

**Step-by-step explanation:**

When you multiply 1 and 17, the answer will be 17. Since 17 is a prime number, there are no other factors apart from 1 and 17.