Question

What is the greatest common factor (GCF) of 27 and 36?

Answer 1

9

Explanation:

the easiest way is the Euclid's algorithm

`36=27(1)+9\\\\27=9(3)+0`

so 9 is the GCF

if you don't know the Euclid's algorithm

we first need to factorize 27 and 36

`27=3*9=3*3*3=3^(3)`

`36=2*18=2*2*9=2*2*3*3=2^(2)*3^(2)`

and the common factor is 3

and the highest common exponent is 2 (of the factor 3)

so the GCF=
`3^(2) =9`

as you can see it's easier the Euclid's algorithm

Answer 2

The answer is 9 have a nice day