Proded Math. III-B: Finding the Greatest Common Factor Proded Math. III-C: Finding the Greatest Common Factor GREATEST COMMON FACTOR and LEAST COMMON MULTIPLE EThe Prime factors, greatest common factor and least common multiple CrossWord Puzzle – Greatest Common Factor Proded Math. 18-C: Naming Factors Proded Math. III-B: Naming Factor Pairs Proded Math. 18-A: Naming Factors Proded Math. III-A : Naming Factors