This bundle contains six handouts dealing with factors, mutilples, and divisibility. The first handout explains the difference between factors and multiples and has the divisibility rules listed for 2, 3, 4, 5, 6, 9, and 10. Then students practice applying those skills. The other worksheets cover prime and composite numbers, prime factorization, greatest common factor (using the upsid- down cake method), and least common multiple (using the upside-down cake method.) The sixth handout is an explanation of how to use the upside-down cake method to find the GCF and LCM. All five worksheets have an answer key. Enjoy!