greatest common factor of 27 and 63list all the factors of 63factors of 63 in pairsfactors of 42 and 63factors of 36 and 63gcf of 35 and 63highest common factor of 72 and 63greatest common factor of 42 and 63greatest common factor of 36 and 63highest common factor of 42 and 63gcf of 63 and 84gcf of 63 and 81
