GCF & LCM

Front

What is the definition of LCM?

Back

LCM stands for Least Common Multiple. It is the smallest multiple that is exactly divisible by two or more numbers.

Front

What is the definition of GCF?

Back

GCF stands for Greatest Common Factor. It is the largest factor that two or more numbers have in common.

Front

What is the LCM of 4 and 5?

Back

20

Front

What is the GCF of 12 and 16?

Back

4

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and find the smallest multiple that appears in both lists.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and find the largest factor that appears in both lists.

Front

What is the LCM of 8 and 12?

Back

24

Front

What is the GCF of 18 and 24?

Back

6

Front

What is the LCM of 9 and 15?

Back

45

Front

What is the GCF of 30 and 45?

Back

15