# What is the LCM of 2 and 4?

Mar 29, 2016

$4$

#### Explanation:

Multiples of $2$ are $\left\{2 , 4 , 6 , 8 , 10 , 12 , 14 , 16 , \ldots\right\}$

Multiples of $4$ are $\left\{4 , 8 , 12 , 16 , \ldots \ldots .\right)$

Hence common multiples are $\left\{4 , 8 , 12 , 16 , \ldots\right\}$ and Lowest Common Multiple is $4$.

Aug 4, 2017

$4$ is a multiple of both $2 \mathmr{and} 4$
$4$ is a multiple of $2$, so we do not need to look any further, because $4$ is a multiple of it self as well.
$4$ is the LCM of $2 \mathmr{and} 4$