Question

What are all the common factors of 36 and 56?


A.
1, 2, 3, 4, 9


B.
1, 2


C.
1, 2, 4


D.
1, 2, 4, 8

Answer 1

36: what are the factors of 36?
1, 2, 3, 4, 6, 9, 12, 18, 36

Now, what are the factors of 56?

Answer 2

\(\bf 36\implies {\color{blue}{ 2}}\cdot {\color{blue}{ 2}}\cdot 3\cdot 3\qquad
56\implies 2\cdot {\color{blue}{ 2}}\cdot {\color{blue}{ 2}}\cdot 7\)

what do you think?