39,549 views
34 votes
34 votes
LCM OF 32, 42 ,48

30 , 42

User Yasitha
by
3.1k points

1 Answer

22 votes
22 votes

To obtain the least common multiple of (l.c.m) we must do it in simultaneous decomposition.

This method consists of extracting the common and uncommon prime factors, then


\large\displaystyle\text{$\begin{gathered}\sf \left.\begin{matrix} \blue{32 \ \ \ 42 \ \ \ 48}\\ 16 \ \ \ 21 \ \ \ 24\\ \ 8 \ \ \ 21 \ \ \ 12\\ \ 4 \ \ \ 21 \ \ \ \ 6\\ \ 2 \ \ \ 21 \ \ \ \ 3\\ \ 1 \ \ \ 21 \ \ \ \ 3\\ \ 1 \ \ \ \ 7 \ \ \ \ 1\\ \ 1 \ \ \ \ 1 \ \ \ \ 1 \end{matrix}\right|\begin{matrix} 2\\ 2\\ 2\\ 2\\ 2\\ 3\\ 7\\ \: \end{matrix} \end{gathered}$}


\large\displaystyle\text{$\begin{gathered}\sf \bf{L.c.m.(32,42,48)=2*2*2*2*2*3*7} \end{gathered}$}


\large\displaystyle\text{$\begin{gathered}\sf \bf{L.c.m.(32,42,48)=2^(5) *3*7} \end{gathered}$}


\boxed{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{L.c.m.(32,42,48)=672} \end{gathered}$}}}

Therefore, the least common multiple of 32, 42, and 48 is 672.


\huge \red{\boxed{\green{\boxed{\boldsymbol{\purple{Pisces04}}}}}}

User Patrik Simek
by
2.6k points