Question

What is the lcm and hcf of 36,96,72

Answer 1

$$\begin{gathered} \mathrm{The}\mathrm{prime}\mathrm{fatorisation}\mathrm{of}36,96\mathrm{and}72\mathrm{is}: \\ 36=2\times 2\times 3\times 3 \\ 96=2\times 2\times 2\times 2\times 2\times 3 \\ 72=2\times 2\times 2\times 3\times 3 \\ \mathrm{LCM}=2\times 2\times 2\times 2\times 2\times 3\times 3=288 \\ \mathrm{HCF}=2\times 2\times 3=12 \end{gathered}$$