Least Common Multiple and Greatest Common Factor

Front

What is the Greatest Common Factor (GCF)?

Back

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

Front

How do you find the GCF of two numbers?

Back

List the factors of each number and identify the largest factor they have in common.

Front

What is the Least Common Multiple (LCM)?

Back

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

Front

How do you find the LCM of two numbers?

Back

List the multiples of each number and identify the smallest multiple they have in common.

Front

What are the first 5 multiples of 5?

Back

5, 10, 15, 20, 25.

Front

What are the first 5 multiples of 7?

Back

7, 14, 21, 28, 35.

Front

If you have 12 and 18, what is their GCF?

Back

The GCF is 6.

Front

If you have 4 and 6, what is their LCM?

Back

The LCM is 12.

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer.