KIYAHM5714GO KIYAHM5714GO Mathematics Answered What is the GCF of 4 and 8 and 12?; What is the greatest factor of 8?; What is the greatest common factor of 4xy2 and 20x2y4?; How do you find the GCF?; What is the GCF of greatest?; What is the greatest common factor of 12a and 9a2?