# 6th - 1.10 GCF and LCM (Purple)

Practice | 12 questions (12 autogradable) | 12 points

List the multiples to find the **LCM (Least Common Multiples)** of each set of numbers. Write in the **LCM**.

1.

5 and 10

2.

2 and 3

3.

6 and 8

4.

8 and 10

Using** Prime Factorization** to find the **GCF** and **LCM** of each set of numbers.

5.

What is the** GCF** 18 and 30

6.

What is the** LCM **15 and 21

7.

What is the** GCF**16 and 42

8.

What is the** LCM **24 and 72

9.

What is the** GCF 8** and 56

10.

What is the** LCM 35** and 45

Use Order of Operations to solve the following. Show all work.

11.

$(25\ \div\ 5)\ +\ 3^{2}\ \times\ 3$

12.

$(2\ \times\ 4)^{2}\ +\ (8\ -\ 6\ \div\ 2)$