Antonneehrollcagakitgo Antonneehrollcagakitgo Math Answered Determine the GCF 1.) 12 = 2 x 2 x 3 20 = 2 x 2 x 5 2.) 18 = 3 x 3 x 2 24 = 2 x 2 x 2 x 3 3.) 20 = 2 x 2 x 5 30 = 2 x 3 x 5 4.) 28 = 2 x 2 x 7 42 = 2 x 3 x 7 5.) 24 = 2 x 2 x 2 x 3 12 = 2 x 2 x 3