#2 Greatest Common Factor & Least Common Multiple

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

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 GCF of two numbers?

Back

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

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 is the GCF of 12 and 16?

Back

The GCF is 4.

Front

What is the LCM of 3 and 5?

Back

The LCM is 15.

Front

If the GCF of two numbers is 1, what does that mean?

Back

It means the two numbers are coprime, having no common factors other than 1.

Front

What is the relationship between GCF and LCM?

Back

The product of the GCF and LCM of two numbers equals the product of the numbers.

Front

What is the GCF of 18 and 24?

Back

The GCF is 6.

Front

What is the LCM of 4 and 6?

Back

The LCM is 12.