32 and 72, 75 and 25, 80 and 125, 40 and 60, 17 and 51, 14 and 54. What do you find

32 and 72, 75 and 25, 80 and 125, 40 and 60, 17 and 51, 14 and 54. What do you find

32 and 72 greatest common factor 8
75 and 25 greatest common factor 25
The greatest common factor of 80 and 125 is 5
17 and 51 greatest common factor 17
14 and 54 greatest common factor 2
The greatest common factor of 75 and 25 and the greatest common factor of 17 and 51 are both the smaller of the two numbers, so when the two numbers are multiple, the smaller decimal is the greatest common factor