These 19 pages of worksheets contain the basic multiplication facts which could be used for review or drill as preliminary activity on finding multiples and factors and eventually solving for Least common multiples (LCM) and Greatest common factors (GCF). This packet includes pages on divisibility, finding for the least common multiples and greatest common factors , identifying prime and composite numbers and a page on prime factorization. These worksheets could be given as homework, or quiz/