Least Common Multiples & Greatest Common Factor Review

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest multiple that is evenly divisible by all the numbers.

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

What is the greatest common factor (GCF)?

Back

The greatest common factor (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 appears in both lists.

Front

What is the LCM of 4 and 10?

Back

20

Front

What is the GCF of 16 and 24?

Back

8

Front

What is the LCM of 8 and 5?

Back

40

Front

What is the GCF of 32 and 40?

Back

8

Front

What is the LCM of 9 and 12?

Back

36

Front

Why is it important to find the LCM?

Back

Finding the LCM is important for solving problems involving fractions, ratios, and scheduling events.