Question

Find the LCM of the following numbers by Prime Factorisation Method;

c) 36,40​

Answer 1

Answer:-

$\begin{array}{c|cc}\cline{2-3}\rm 2 &\rm 36 &\rm 40 \\ \cline{2-3} \rm 2 &\rm 18 &\rm 20 \\ \cline{2- 3} \rm 2 &\rm 9 &\rm 10 \\ \cline{2-3}\rm 3 &\rm 9 &\rm 5 \\ \cline{2-3} \rm 3 &\rm 3&\rm 5 \\ \cline{2-3}\rm 5 &\rm 1 &\rm 5 \\ &\rm 1 &\rm 1\end{array}$

LCM:-

• 2×2×2×3×3×5=360

Note:-

View the answer from web for the Factorisation view