5-1 Least Common Multiple (LCM)

Front

What is the Least Common Multiple (LCM)?

Back

The 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, list the multiples of each number and identify the smallest multiple that appears in both lists.

Front

What are the first five multiples of 10?

Back

10, 20, 30, 40, 50

Front

What are the first five multiples of 6?

Back

6, 12, 18, 24, 30

Front

What is the LCM of 25 and 10?

Back

50

Front

Which of these numbers is a multiple of 18? 2, 6, 35, 54

Back

54

Front

If one sign blinks every 9 seconds and another every 15 seconds, when will they blink together?

Back

They will blink together every 45 seconds.

Front

What is a multiple?

Back

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

Front

What is the relationship between LCM and GCD (Greatest Common Divisor)?

Back

The LCM of two numbers can be found using the formula: LCM(a, b) = (a * b) / GCD(a, b).

Front

List the first five multiples of 5.

Back

5, 10, 15, 20, 25