Mathematics Magazine for Grades 112 

The Greatest Common Factor and the Least Common Multiplier Calculator 



The greatest common factor The greatest common factor, or GCF, is the greatest factor that divides two numbers. To find the GCF of two numbers:
The Least Common Multiple A common multiple is a number that is a multiple of two or more numbers. The common multiples of 3 and 4 are 0, 12, 24, .... The least common multiple (LCM) of two numbers is the smallest number (not zero) that is a multiple of both.

