What are Factors Factors are numbers that are multiplied to get other numbers FACTOR x FACTOR PRODUCT example 5x4 20 factors 1 The Identity Property of Multiplication sometimes called the Multiplication Property of One says that a number does not change if it is multiplied by 1 This means that even a number as large as 10 million multiplied by 1 will be itself 10 million 4
The factors of 20 are the numbers that you can multiply by in order to get 20 Here are the basic facts that have 20 as an answer 1 x 20 20 20 x 1 20 2 x 10 20 10 x 2 20 4 x 5 20 5 x 4 20 20 5
All of the numbers that create 20 using multiplication are factors of 20 Look at a multiplication chart to find the factors of 20 MULTIPLICATION TABLE 1-20 6
You can write a number’s factors in many ways Here are a few Rainbow Method Factors of 20 1 2 4 5 10 20 Factor Rainbow for 20 1 2 4 5 10 20 The factor pairs are written down and connected in numerical order You complete all the possible factors when you meet in the middle Since 4 and 5 are next to each other on the number line you know you are done writing the factors of 20 T-Chart for 20 20 20 10 5 1 2 4 A T-chart sorts factors as pairs You are done making the T-chart when you have reached an inverse operation like 4 x 5 20 and 5 x 4 20 7
