Question

Find the HCF of 72, 64 and 48.

Answer 1

We can factorise the numbers as follows :
$72=2\times 2\times 2\times 3\times 3$
$64=2\times 2\times 2\times 2\times 2\times 2$
$48=2\times 2\times 2\times 2\times 3$
Take the common factors in all the given numbers, which is
$2\times 2\times 2$
Now, SImplyfing to get the HCF.
$\text{The HCF of}72,64\text{and}48=2\times 2\times 2=8$