This math topic focuses on the skills of prime factorization and determining if one integer is a factor of another using factorization. Students are presented with expressions showing prime factorizations of two numbers. They must then decide if the first number is a factor of the second. Examples include determining if 9 is a factor of 18, if 35 is a factor of 42, and other similar problems. The topic is designed to help learners understand and practice the concepts of factorization and greatest common factors.