Question

6. Qual é o maior número que divide 75,90 e 120?
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Answer 1

$\begin{array}{c|l}75,90,120&2\\75,45,60&2\\75,45,30&2\\75,45,15&\boxed{3}\\25,15,5&3\\25,5,5&\boxed{5}\\5,1,1&5\\1,1,1\end{array}$

$\boxed{\boxed{\boxed{\boxed{\sf{MDC(75,90,120)=3\cdot5=15}}}}}$