Station 3: GCF and LCM

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

List all the factors of 12.

Back

1, 2, 3, 4, 6, 12

Front

What is the GCF (Greatest Common Factor)?

Back

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

Front

Find the GCF of 24 and 36.

Back

12

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer. For example, multiples of 7 include 7, 14, 21, 28, etc.

Front

Which of the following is a multiple of 7? 14, 17, 22

Back

14

Front

What is the LCM (Least Common Multiple)?

Back

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

Front

Find the LCM of 18 and 24.

Back

72

Front

What is the LCM of 4 and 10?

Back

20

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 they have in common.