Example: Find the GCF (18, 27) 27 - 18 = 9 18 - 9 - 9 = 0 So, the greatest common factor of 18 and 27 is 9, the smallest result we had before we reached 0. Example: Find the GCF (20,50,120) Note that the GCF (x,y,z) = GCF (GCF (x,y),z).
Sometimes referred to as a buzz saw or by the popular brand name of Skilsaw, circular saws use a toothed blade, typically between 7-Â¼ and 9 inches in diameter. They are the most common type of powered saw, and accept blades that cut all types of wood, metal, plastic, masonry, and more.
Coping saws are used for cutting a range of woods and are very useful for cutting unusual shapes or curves. In a modern workshop these shapes are normally cut using machine fretsaws. However, there are times when these machines are not available.