Question

What is the greatest common factor of 12, 2, and 84?

Answer 1

2

Explanation:

2 can go into 12,2, and 84

Answer 2

To obtain the greatest common divisor of (g.c.d) we must do it in simultaneous decomposition.

This method consists of extracting the common and uncommon prime factors, then

`\large\displaystyle\text{$\begin{gathered}\sf \left.\begin{matrix} \blue{12 \ \ \ 2 \ \ \ 84}\\ \ 6 \ \ \ 1 \ \ \ 42 \end{matrix}\right|\begin{matrix} 2\\ \: \end{matrix} \end{gathered}$}`

As we can see the number 2, is the only common prime number.

The greatest common factor of 12, 2, and 84 is 2.