Question

The common factor of $8m^2,4m$ and $10m^4$ is

• A. $2m^2$
• B. $4m$
• C. $4m^2$
• D. $2m$

Answer 1

Answer: (D)

$8m^2=2\times 2\times 2\times m\times m$
$4m=2\times 2\times m$
$10m^4=2\times 5\times m\times m\times m\times m$
$\text{ Common factor }=2m$