GCF and LCM

Front

What is the GCF (Greatest Common Factor)?

Back

The GCF of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

What is the LCM (Least Common Multiple)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of all of them.

Front

Find the GCF of 12 and 16.

Back

The GCF is 4.

Front

Find the LCM of 4 and 5.

Back

The LCM is 20.

Front

What is the relationship between GCF and LCM?

Back

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

Front

Find the GCF of 18 and 24.

Back

The GCF is 6.

Front

Find the LCM of 3 and 7.

Back

The LCM is 21.

Front

What method can be used to find the GCF of two numbers?

Back

The prime factorization method or the listing factors method can be used.

Front

What method can be used to find the LCM of two numbers?

Back

The prime factorization method or the listing multiples method can be used.

Front

Find the GCF of 30 and 45.

Back

The GCF is 15.