Prime factorization and GCF.

Front

What is Prime Factorization?

Back

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

Front

What are prime numbers?

Back

Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves.

Tags

CCSS.4.OA.B.4

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

How do you find the GCF using a factor tree?

Back

1. Break down each number into its prime factors using a factor tree. 2. Identify the common prime factors. 3. Multiply the common prime factors to find the GCF.

Front

Find the GCF of 12 and 18 using a factor tree.

Back

GCF is 6.

Front

List the factors of 24.

Back

1, 2, 3, 4, 6, 8, 12, 24.

Tags

CCSS.4.OA.B.4

Front

List the factors of 30.

Back

1, 2, 3, 5, 6, 10, 15, 30.

Tags

CCSS.4.OA.B.4

Front

What is the GCF of 30 and 24?

Back

GCF is 6.

Front

How do you find the GCF by listing factors?

Back

1. List all factors of each number. 2. Identify the common factors. 3. The largest of these is the GCF.

Front

What is the GCF of 15 and 45?

Back

GCF is 15.