How Do You Find GCF and LCM?

Curated and Reviewed by Lesson Planet

Using the numbers 225 and 270, the narrator explains how to find the greatest common factor and the least common multiple. This presentation could be used in conjunction with other videos in a series exploring how to identify prime numbers. The teacher uses factor trees and applies divisibility rules to find the answers.

62 Views 57 Downloads CCSS: Adaptable

Concepts

factor trees, factoring, factoring numbers, factors, greatest common factor, least common multiple, prime numbers