In factoring out the greatest common factor, we must first find the greatest common factor. So what we’re going to do is we’re going to write down each term of this expression.

Revise Highest Common Factor and Lowest Common Multiple, HCF and LCM using prime factors and how to use Venn diagrams in this Bitesize guide.

The Greatest Common Factor, or GCF, is the largest integer that is a factor of two or more integers. Say for example we have three integers in question. So, we’ve got 12, 24, and 6. So, on the other ...