Highest common factor hcf of 70 and 385 July 8, 2019 16 32 64 128 Find the highest common factor hcf of 70 and 385 Use the prime factor trees to find the highest common factor hcf of 70 and 385 High common factor and least common multiple How to find highest common factor Highest common factor khan academy How to find greatest common factor of 3 numbers
