Prime Factorization and GCF Concepts

This video tutorial explains how to find the greatest common factor (GCF) using prime factorization. It provides two examples: finding the GCF of 12 and 24, and the GCF of 24 and 60. The process involves creating factor trees for each number, identifying common prime factors, and calculating their product to determine the GCF. The video concludes with a call to action to check out other videos and subscribe.

What is the method used in the video to find the greatest common factor?

• Multiplication

• Subtraction method

• Prime factorization

• Long division

What is the first step in finding the GCF using prime factorization?

• Create a factor tree

• Add the numbers

• Multiply the numbers

• Divide the numbers

What is the purpose of creating a factor tree?

• To divide numbers

• To multiply numbers

• To identify prime factors

• To find the sum of numbers

What are the prime factors of 12?

• 3 and 5

• 2 and 3

• 2 and 6

• 4 and 3

Which number is a prime factor of both 12 and 24?

• 3

• 7

• 9

• 5

What is the prime factorization of 24?

• 2 x 2 x 2 x 3

• 2 x 3 x 4

• 3 x 3 x 2

• 2 x 2 x 3 x 5

What is the greatest common factor of 12 and 24?

• 24

• 12

• 8

• 6

What is the result of multiplying the common prime factors of 12 and 24?

• 12

• 10

• 8

• 6

What are the first two numbers used to factor 60?

• 2 and 30

• 5 and 12

• 3 and 20

• 6 and 10

Which of the following is a prime factor of 60?

• 8

• 10

• 5

• 4