MATH greatest common factor (Lesson 3) - Suzanne Leibrock | Library

Watch the video.
Find the greatest common factor for each set of numbers.
Show your work by listing the factors for each number.

1

4 and 20
_______ 

1

24 and 12
_______  

1

20 and 15
_______ 

1

7 and 21
_______ 

1

40 and 16
_______ 

1

63 and 27
_______ 