Common Factors and Venn Diagrams

Amani Kumar guides students through finding the greatest common factor (GCF) using a Venn diagram. The video begins with an introduction to the problem, followed by steps to list all possible factors of the given numbers, 24 and 40. The process involves identifying common factors and placing them in a Venn diagram. The video concludes with determining the GCF, which is 8, and summarizing the method used.

What is the purpose of using a Venn diagram in finding the greatest common factor?

• To find the least common multiple

• To calculate the sum of factors

• To visually represent common factors

• To list all factors of a number

Which of the following is a factor of 24?

• 9

• 5

• 7

• 8

Which of the following is NOT a factor of 40?

• 5

• 20

• 15

• 10

What is the first step in finding the greatest common factor using a Venn diagram?

• Identify the common factors

• List all possible factors of the numbers

• Calculate the product of the numbers

• Draw the Venn diagram

Which of the following pairs of numbers are common factors of both 24 and 40?

• 7 and 14

• 3 and 6

• 5 and 10

• 1 and 2

Where are the common factors placed in a Venn diagram?

• Outside the circles

• In the overlapping section

• In the right circle

• In the left circle

Which of the following is a factor of 24 but not of 40?

• 6

• 4

• 10

• 8

Which of the following is a factor of 40 but not of 24?

• 12

• 5

• 24

• 3

What is the greatest common factor of 24 and 40?

• 6

• 4

• 8

• 10

How many common factors do 24 and 40 have?

• 2

• 3

• 4

• 5