Understanding Factors and Factor Pairs

The video tutorial explains how to use factor rainbows to find all factors of a number. It begins with an introduction to the concept of factors and factor rainbows. The tutorial then demonstrates finding factors of 12 by connecting pairs of numbers that multiply to 12, using a rainbow diagram. The process is repeated for the number 20, showing how to identify and connect factor pairs. The video emphasizes the importance of counting and checking each number to ensure all factors are found.

What is a factor in mathematics?

• A number that is subtracted from another number

• A number that is added to another number

• A number that is divided by another number

• A number that divides another number evenly

What is the first step in finding factors using a factor rainbow?

• Start with the number 1

• Start with the number 4

• Start with the number 2

• Start with the number 3

Which pair of numbers is connected in the factor rainbow for 12?

• 6 and 7

• 3 and 4

• 2 and 5

• 1 and 11

When do you know you have completed the factor rainbow for a number?

• When you reach the number 10

• When you run out of numbers to connect

• When you connect all numbers on the left

• When a number on the left matches a number on the right

What is the first factor pair for the number 20?

• 1 and 20

• 3 and 7

• 4 and 5

• 2 and 10

Which number is not a factor of 20?

• 4

• 3

• 10

• 5

What is the final factor pair for the number 20?

• 1 and 19

• 2 and 9

• 4 and 5

• 6 and 7