Prime Factorization, GCF, and LCM

Front

What is Prime Factorization?

Back

Prime Factorization is the process of breaking down a number into its prime factors, which are the prime numbers that multiply together to give the original number.

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

To find the GCF, list the prime factors of each number and multiply the common factors.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the prime factors of each number, take the highest power of each prime factor, and multiply them together.

Front

What is the prime factorization of 60?

Back

The prime factorization of 60 is 2^2 • 3 • 5.

Front

What is the prime factorization of 84?

Back

The prime factorization of 84 is 2^2 • 3 • 7.

Front

What is the GCF of 60 and 84?

Back

The GCF of 60 and 84 is 12.

Front

What is the LCM of 60 and 84?

Back

The LCM of 60 and 84 is 420.

Front

What is the prime factorization of 28?

Back

The prime factorization of 28 is 2^2 • 7.

Tags

CCSS.4.OA.B.4