How Do You Factor Out A Number?
Here are some step-by-step instructions on how to use the factor tree when looking for the least common multiple or greatest common factor in math. First write the number you are trying to factor. For this example we will use the number 26. Next you want to find out what two numbers can be multiplied together to make 26. In this case that would be 2 times 13, which equals 26. Because the number 2 is in its lowest form and the number 13 is not an even number, you would stop here. The factors for the number 26 are 2 and 13. Factor a larger number, the number 144. The numbers 2 times 72 equals 144. You can’t stop here because 72 is even and can be divided into. You will leave the 2 because it can’t be factored anymore. The numbers 2 times 36 equals 72. Now you have to divide into the 36 because it is even and can be factored out. This would be the numbers 2 times 18. Then you would factor the 18, which would be 2 times 9. Here you will see that you are left with the number 9, which seems
