The HCF of two consecutive odd numbers is ............

Explanation

To find the HCF (Highest Common Factor) of two consecutive odd numbers, let's follow these steps:

### Step 1: Understand Consecutive Odd Numbers
Consecutive odd numbers are numbers that follow each other in the sequence of odd numbers. For example, 3 and 5, or 7 and 9.

### Step 2: Choose Two Consecutive Odd Numbers
Let’s take two consecutive odd numbers as an example. We can choose 3 and 5.

...