Find the greatest common factor of 27 and 45 .

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asked May 20, 2020 131k views

1 vote

Find the greatest common factor of 27
and 45
.

Mathematics
middle-school

Laplas asked

by Laplas

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1 Answer

2 votes

Answer:

$\large\boxed{GCF(27,\ 36)=9}$

Explanation:

$\begin{array}c27&3\\9&3\\3&3\\1\end{array}\\\\27=\boxed3\cdot\boxed3\cdot3\\\\\begin{array}c45&3\\15&3\\5&5\\1\end{array}\\\\45=\boxed3\cdot\boxed3\cdot5\\\\GCF(27,\ 45)=\boxed3\cdot\boxed3=9$

Azzy answered May 23, 2020

by Azzy

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