Highest common factor of 28 and 32

Highest Common Factor - Find the Highest Common Factor (H.C.F)
Highestcommonfactor (H.C.F) of two or more numbers is the greatest number which divides each of them exactly. Now we will learn about the method of finding highestcommonfactor (H.C.F). Steps 1.

Factors and Common Factors - Wyzant Resources
List the factor pairs and factor lists of the following numbers: 15, 20, 17, 43, 28, 32, 99. Solutions—first we’ll list the factor pairs, and then we’ll list the factor list from smallest to largest