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