LCM and GCF

Front

What is the definition of LCM?

Back

LCM stands for Least Common Multiple. It is the smallest multiple that two or more numbers have in common.

Front

What is the definition of GCF?

Back

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

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 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 identify the largest factor that appears in both lists.

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer.

Front

What is a factor?

Back

A factor of a number is an integer that can be multiplied by another integer to produce that number.

Front

What is the LCM of 4 and 5?

Back

The LCM of 4 and 5 is 20.

Front

What is the GCF of 12 and 16?

Back

The GCF of 12 and 16 is 4.

Front

Which of the following is a multiple of 3? 9, 10, 11, 12

Back

9 and 12 are multiples of 3.

Front

Which of the following is a factor of 24? 2, 5, 7, 9

Back

2 is a factor of 24.