What is the GCF for 18, 45, and 90
The GCF is nine(9) just look at the 2x table and you'll see that it gives you all the factors
♥ GCF (greatest common factor) is 9.Multiply all of these by 2, and the greatest number that you get (that are the same) of all, is the GCFSo the GCF of like10 20 and 30Is 10 because thats the largest number you can multiply to get all the same.
