Resposta :
Vamos là.
12 36 54 2
6 18 27 2
3 9 27 3
1 3 9 3
1 1 3 3
1 1 1
mmc(12, 36, 54) = 2^2*3^3 = 108
[tex]\begin{array}{c|c}\sf12,36,54&\sf2\\\sf6,18,27&\sf2\\\sf3,9,27&\sf3\\\sf1,3,9&\sf3\\\sf1,1,3&\sf3\\\sf1,1,1\end{array}[/tex]
[tex]\sf m\cdot m\cdot c(12,36,54)=2^2\cdot3^3[/tex]
[tex]\sf m\cdot m\cdot c(12,36,54)=108[/tex]