Question

One of the two numbers is five times the other. What is their HCF

Answer 1

then the HCF will be the smallest number. refer to the attached file for detailed information

Answer 2

$\textbf{Heya}$

Let the one number be $\textbf{x}$.

So the second number will be $\textbf{5x}$.

First number = x = x × 1
Second number = 5x = 5 × x × 1

As in HCF, we only take the $\textbf{common number}$.

HCF = x × 1 = $\textbf{x}$

$\textbf{Hope this helps you.}$