This lesson focuses on prime factorization and the GCF and LCD. Students begin by distinguishing between prime and composite numbers. They then find the divisors and prime factorization of composite numbers. Next, they find the greatest common factor (GCF) of two or more numbers and the least common denominator (LCD) for two fractions. The lesson concludes by using factors to simplify fractions.

Originally released by Learnetic, 2016.