Tag Archives: greatest common factor

GCF of 2 Numbers, Trick Finds it Fast

Ever need to find the GCF of two numbers? Here’s a trick for finding the GCF of any two numbers — very quickly. This is an original trick, so I doubt you’ll find it anywhere else online. But most important, it’s easy to use, and it works no matter how large the numbers might be. Also nice … learning this […]

Recent insight on the GCF (and GPGCF)

Two factors limit the size of the GCF for any two numbers. Those factors are: 1) the difference between the two numbers, and 2) the size of the smaller of the two numbers. Whichever of these two factors is smaller is the Greatest Possible Greatest Common Factor, also known as the GPGCF.