# What is the least common factor of minus four and two??

##### 1 Answer

$- 2$

#### Explanation:

$- 4$: $- 4$, $\textcolor{g r e e n}{- 2}$, $\textcolor{g r e e n}{- 1}$, $\textcolor{g r e e n}{1}$, $\textcolor{g r e e n}{2}$, $4$
$2$: $\textcolor{g r e e n}{- 2}$, $\textcolor{g r e e n}{- 1}$, $\textcolor{g r e e n}{1}$, $\textcolor{g r e e n}{2}$

$\textcolor{g r e e n}{- 2}$, $\textcolor{g r e e n}{- 1}$, $\textcolor{g r e e n}{1}$, and $\textcolor{g r e e n}{2}$ all work, so take into account the least common factor. That leaves you with $- 2$ because it is the smallest.