Here you will learn about GCF and LCM (greatest common factor and least common multiple), including how to find the GCF and LCM of two or more numbers using the prime factorization method and recognize when to find the GCF or the LCM in word problems. Students will first learn about GCF and LCM as part of the number system in 6th grade.

factoring greatest common factor least common multiple GCF LCM