Factor each expression

Question

Please factor this expression 27+12.

Answer 1

The factors of 27 are 1, 27, 3, 9

 

The factors of 12 are 1, 12, 2, 6, 3, 4

 

The factors of 39 (the sum of 27 + 12) are 1, 39, 3, 13

Answer 2

Let's factor out the greatest common factor (GCF):

 

          27      +      12

 

= (3 x 3 x 3) + (2 x 2 x 3)   (The largest number in both parts is 3)

 

=    3 ( 9 )    +   3 ( 4 )

 

=         3 ( 9  +  4 )