The whole number factors of 20 are the numbers that divide 20 exactly without leaving a remainder. These factors are:
- 1
- 2
- 4
- 5
- 10
- 20
To find the factors of 20, you can start by dividing 20 by the smallest whole number, which is 1. Since 20 divided by 1 is 20, both 1 and 20 are factors. Next, divide 20 by 2, which gives 10. So, 2 and 10 are also factors. Continuing this process, 20 divided by 4 is 5, making 4 and 5 factors as well. Finally, 20 divided by 5 is 4, which we’ve already listed. Therefore, the complete list of whole number factors of 20 is 1, 2, 4, 5, 10, and 20.