GCF and LCM Review

Front

What is the GCF (Greatest Common Factor)?

Back

The GCF of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor that they have in common.

Front

Find the GCF of 24 and 45.

Back

3

Front

Find the GCF of 12 and 36.

Back

12

Front

Find the GCF of 10 and 50.

Back

10

Front

What is the LCM (Least Common Multiple)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of all of them.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple that they have in common.

Front

Find the LCM of 7 and 4.

Back

28

Front

Find the LCM of 9 and 12.

Back

36

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.