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

How do you find the GCF of two numbers?

Back

You can find the GCF by listing the factors of each number and identifying the largest common factor.

Front

How do you find the LCM of two numbers?

Back

You can find the LCM by listing the multiples of each number and identifying the smallest common multiple.

Front

What is prime factorization?

Back

Prime factorization is expressing a number as the product of its prime factors.

Front

What is a factor tree?

Back

A factor tree is a diagram that breaks down a number into its prime factors.

Front

Find the GCF of 12 and 18.

Back

The GCF is 6.

Front

Find the LCM of 4 and 5.

Back

The LCM is 20.

Front

What is the prime factorization of 36?

Back

The prime factorization of 36 is 2 x 2 x 3 x 3.

Front

Is 15 a multiple of 3?

Back

Yes, because 15 can be divided by 3 without a remainder.