Divisors of 81
In this article we are going to list out the divisors of 81, explain and define what a divisor is, and also show you how to calculate and find the divisors of 81 (or any number) yourself.
When you are trying to solve a word problem that is written like "X divided by Y equals Z", there are three main parts which we are concerned with. These are the Dividend, the Divisor, and the Quotient.
Dividend (X) / Divisor (Y) = Quotient
We are looking in this case for the divisors of 81. The divisors of 81 must be a whole number, and the resulting quotient must also be a whole number.
81 / Divisor (Whole Number) = Quotient (Whole Number)
To do this manually, you can divide the number 81 by every whole number from 1 to 81. For example:
- 81 / 1 = 81
- 81 / 2 = 40.5
- 81 / 3 = 27
- 81 / 4 = 20.25
- 81 / 5 = 16.2
Once you have done that you can go through the list of divisors and find only those that have a quotient that is a whole number. Each of those is a divisor of 81.
This can be done a lot quicker and a lot easier by computers than it can be by hand, so we have gone through all of the divisors of 81 automatically for you and found the entire list of divisors.
Here are all of the divisors of 81:
If you need the divisors of 81 in a comma separated list, here they are:
1, 3, 9, 27, and 81
If you want to practice this yourself you can grab a pencil and a piece of paper and try to find the divisors of another whole number from 4-100.
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