What is the greatest common factor of 9 and 54 July 8, 2019 16 32 64 128 What is the greatest common factor of 9 and 54 the gcf of 9 and 54 is What is the greatest common factor between 9 and 54 What is the greatest common factor of 27 54 and 9 9 is the greatest common factor of 36 and 54 Greatest common multiple 5 + 9 = 14