Least Common Multiples

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 exactly divisible by each of the numbers.

Front

How do you find the LCM of two numbers?

Back

To find the LCM of two numbers, list the multiples of each number and find the smallest multiple that appears in both lists.

Front

What is the LCM of 6 and 12?

Back

12

Front

What is the LCM of 6 and 10?

Back

30

Front

What is the LCM of 8 and 9?

Back

72

Front

What is the LCM of 2 and 11?

Back

22

Front

If every 4th student gets a tube of paint and every 7th student gets crayons, how do you find the first student to get both?

Back

Find the LCM of 4 and 7, which is 28.

Front

What is a multiple?

Back

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

Front

What are the first five multiples of 3?

Back

3, 6, 9, 12, 15.

Front

What are the first five multiples of 5?

Back

5, 10, 15, 20, 25.