Highest common factor 42 and 105 July 8, 2019 16 32 64 128 What is the highest common factor (gcf) of 42 and 105 Highest common factor between 42 and 105 Highest common factor of 42 63 and 105 Find the highest common factor of 42 and 105 What is the highest common factor gcf of 42 and 105 1 2 3 4 5 moddalar