GCF and LCM Quiz

GCF & LCM math quiz: Practice factors, prime factorization, and word problems!

What are the factors of 28? 1, 2, 4, 7, 14, 28 1, 2, 4, 8, 14, 28 2, 5, 7, 14 2, 4, 7, 10 Which of the following is not a factor of 42? 3 6 7 4 Match each number with their prime factorization. 54 2 x 3 x 3 x 3 78 2 x 3 x 13 52 2 x 2 x 13 63 3 x 3 x 7 What is the GCF of 30, 42, and 66? The GCF of 30, 42, and 66 is 6 What is the GCF and the LCM of 12, 18, and 60? The GCF is 6 and the LCM is 180. Find the GCF and the LCM of 35 and 21. The GCF is 7 and the LCM is 105. Write the sum: 28 + 24 as a product of the GCF and a sum of two numbers. 4(7 + 6)4 (7+6) Match each sum with its corresponding expression. 24 + 16 8 (3 + 2) 15 + 30 15 (1 + 2) 48 + 28 4 (12 + 7) 32 + 56 8 (4 + 7) Taylor is thinking of a number that is divisible by both 17 and 8. What is the smallest possible number that Taylor could be thinking of? Taylor's number must be 136 Renee works at the Candy Boutique making gift candy arrangements. Each arrangement must have the same number of truffles and the same number of hard candies. If she has 16 truffles and 24 hard candies, and uses all of the pieces of candy, what is the greatest number of arrangements she can make? The greatest number of arrangements she can make is 8.