GCF of 28 and 44


The gcf of 28 and 44 is the largest positive integer that divides the numbers 28 and 44 without a remainder. Spelled out, it is the greatest common factor of 28 and 44. Here you can find the gcf of 28 and 44, 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 28 and 44, but also that of three or more integers including twenty-eight and forty-four for example. Keep reading to learn everything about the gcf (28,44) and the terms related to it.

What is the GCF of 28 and 44

If you just want to know what is the greatest common factor of 28 and 44, it is 4. Usually, this is written as

gcf(28,44) = 4

The gcf of 28 and 44 can be obtained like this:

  • The factors of 28 are 28, 14, 7, 4, 2, 1.
  • The factors of 44 are 44, 22, 11, 4, 2, 1.
  • The common factors of 28 and 44 are 4, 2, 1, intersecting the two sets above.
  • In the intersection factors of 28 ∩ factors of 44 the greatest element is 4.
  • Therefore, the greatest common factor of 28 and 44 is 4.

Taking the above into account you also know how to find all the common factors of 28 and 44, not just the greatest. In the next section we show you how to calculate the gcf of twenty-eight and forty-four by means of two more methods.

How to find the GCF of 28 and 44

The greatest common factor of 28 and 44 can be computed by using the least common multiple aka lcm of 28 and 44. This is the easiest approach:

gcf (28,44) = $\frac{28 \times 44}{lcm(28,44)} = \frac{1232}{308}$ = 4

Alternatively, the gcf of 28 and 44 can be found using the prime factorization of 28 and 44:

  • The prime factorization of 28 is: 2 x 2 x 7
  • The prime factorization of 44 is: 2 x 2 x 11
  • The prime factors and multiplicities 28 and 44 have in common are: 2 x 2
  • 2 x 2 is the gcf of 28 and 44
  • gcf(28,44) = 4

In any case, the easiest way to compute the gcf of two numbers like 28 and 44 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 28,44. The calculation is conducted automatically.

The gcf is...
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Use of GCF of 28 and 44

What is the greatest common factor of 28 and 44 used for? Answer: It is helpful for reducing fractions like 28 / 44. Just divide the nominator as well as the denominator by the gcf (28,44) to reduce the fraction to lowest terms.

$\frac{28}{44} = \frac{\frac{28}{4}}{\frac{44}{4}} = \frac{7}{11}$.

Properties of GCF of 28 and 44

The most important properties of the gcf(28,44) are:

  • Commutative property: gcf(28,44) = gcf(44,28)
  • Associative property: gcf(28,44,n) = gcf(gcf(44,28),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 28 and 44 is 4. In common notation: gcf (28,44) = 4.

If you have been searching for gcf 28 and 44 or gcf 28 44 then you have come to the correct page, too. The same is the true if you typed gcf for 28 and 44 in your favorite search engine.

Note that you can find the greatest common factor of many integer pairs including twenty-eight / forty-four by using the the search form in the sidebar of this page.

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