Finding Least Common Multiples and Greatest Common Factors

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 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 each of the numbers without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

To find the GCF of two numbers, 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

Find the LCM of 4 and 5.

Back

The LCM of 4 and 5 is 20.

Front

Find the GCF of 12 and 16.

Back

The GCF of 12 and 16 is 4.

Front

What is the relationship between LCM and GCF?

Back

The product of the LCM and GCF of two numbers is equal to the product of the numbers themselves.

Front

Calculate the LCM of 6 and 8.

Back

The LCM of 6 and 8 is 24.