The **gcf of 72 and 96** is the largest positive integer that divides the numbers 72 and 96 without a remainder. Spelled out, it is the greatest common factor of 72 and 96. Here you can find the gcf of 72 and 96, along with a total of three methods for computing it. In addition, we have a calculator you should check out. Not only can it determine the gcf of 72 and 96, but also that of three or more integers including seventy-two and ninety-six for example. Keep reading to learn everything about the gcf (72,96) and the terms related to it.

## What is the GCF of 72 and 96

If you just want to know *what is the greatest common factor of 72 and 96*, it is **24**. Usually, this is written as

**gcf(72,96) = 24**

The gcf of 72 and 96 can be obtained like this:

- The factors of 72 are 72, 36, 24, 18, 12, 9, 8, 6, 4, 3, 2, 1.
- The factors of 96 are 96, 48, 32, 24, 16, 12, 8, 6, 4, 3, 2, 1.
- The
*common*factors of 72 and 96 are 24, 12, 8, 6, 4, 3, 2, 1, intersecting the two sets above. - In the intersection factors of 72 ∩ factors of 96 the
*greatest*element is 24. - Therefore, the
**greatest common factor of 72 and 96 is 24**.

Taking the above into account you also know how to find *all* the common factors of 72 and 96, not just the greatest. In the next section we show you how to calculate the gcf of seventy-two and ninety-six by means of two more methods.

## How to find the GCF of 72 and 96

The greatest common factor of 72 and 96 can be computed by using the least common multiple aka lcm of 72 and 96. This is the easiest approach:

Alternatively, the gcf of 72 and 96 can be found using the prime factorization of 72 and 96:

- The prime factorization of 72 is: 2 x 2 x 2 x 3 x 3
- The prime factorization of 96 is: 2 x 2 x 2 x 2 x 2 x 3
- The prime factors and multiplicities 72 and 96 have in common are: 2 x 2 x 2 x 3
- 2 x 2 x 2 x 3 is the gcf of 72 and 96
- gcf(72,96) = 24

In any case, the easiest way to compute the gcf of two numbers like 72 and 96 is by using our calculator below. Note that it can also compute the gcf of more than two numbers, separated by a comma. For example, enter 72,96. The calculation is conducted automatically.

## Use of GCF of 72 and 96

What is the greatest common factor of 72 and 96 used for? Answer: It is helpful for reducing fractions like 72 / 96. Just divide the nominator as well as the denominator by the gcf (72,96) to reduce the fraction to lowest terms.

$\frac{72}{96} = \frac{\frac{72}{24}}{\frac{96}{24}} = \frac{3}{4}$.

## Properties of GCF of 72 and 96

The most important properties of the gcf(72,96) are:

- Commutative property: gcf(72,96) = gcf(96,72)
- Associative property: gcf(72,96,n) = gcf(gcf(96,72),n) $\hspace{10px}n\hspace{3px}\epsilon\hspace{3px}\mathbb{Z}$

The associativity is particularly useful to get the gcf of three or more numbers; our calculator makes use of it.

To sum up, the gcf of 72 and 96 is 24. In common notation: gcf (72,96) = 24.

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Note that you can find the greatest common factor of many integer pairs including seventy-two / ninety-six by using the search form in the sidebar of this page.

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