Finding Common Factors and Venn Diagrams

The video tutorial by Amal Kumar explains how to find common factors of numbers using Venn diagrams. It covers finding factors of 24, 40, and 60, sketching a Venn diagram, identifying common factors, and determining the greatest common factors. The tutorial concludes with an exercise on finding the least common multiple.

What is the purpose of using Venn diagrams in finding common factors?

• To calculate the product of factors

• To identify common factors among multiple numbers

• To find the sum of all factors

• To visualize the factors of a single number

Which of the following is a factor of 24?

• 11

• 9

• 5

• 6

What is the largest factor of 24?

• 6

• 12

• 24

• 8

Which number is not a factor of 40?

• 10

• 15

• 8

• 5

What is the smallest factor of 40?

• 2

• 5

• 1

• 4

Which of the following is a factor of 60?

• 9

• 15

• 7

• 11

What is the largest factor of 60?

• 60

• 30

• 20

• 10

How many circles are used in the Venn diagram for three numbers?

• Four

• One

• Two

• Three

What is the purpose of the center area in a Venn diagram?

• To show unique factors

• To show common factors among all numbers

• To show the smallest factor

• To show the largest factor

Which number is common to all three numbers: 24, 40, and 60?

• 4

• 5

• 3

• 6