Question

Find the GCD of 12, 44 and 86 using long division method.

Answer 1

GCD indicates the greatest common factors of all the three numbers.

To find the GCD of three numbers using long division method, let's first find the GCD of two numbers, and finally the GCD of the $3^{rd}$ number with the resulting GCD of the other two numbers.

GCD of $12$ and $44$ is $4.$
Now, GCD of $4$ and $86$ is the GCD of the three numbers.
$\therefore$ GCD of $12,44$ and $86$ is $2.$