Question

Find the LCM, using the division method of 198, 135,108, 54 and 22.

Answer 1

L.C.M. by division method,

$$\begin{gathered} 2\overline{)22,54,108,135,198} \\ \overline{2\overline{)11,27,54,135,99}} \\ \overline{3\overline{)11,27,27,135,99}} \\ \overline{3\overline{)11,9,9,45,33}} \\ \overline{3\overline{)11,3,3,15,11}} \\ \overline{3\overline{)11,1,1,5,11}} \\ \overline{5\overline{)11,1,1,1,11}} \\ \overline{11\overline{)1,1,1,1,1}} \\ L.C.M.=2\times 2\times 3\times 3\times 3\times 3\times 5\times 11=17820 \end{gathered}$$