Find the highest common factor of 6 and 9 July 8, 2019 16 32 64 128 Find the highest common factor of 6 9 and 12 Find the highest common factor hcf of 6 and 9 How to find the greatest common factor 6th grade math How to find highest common factor Find the least common multiple How find greatest common factor How to find greatest common factor of 3 numbers