GCF of 55 and 35


The gcf of 55 and 35 is the largest positive integer that divides the numbers 55 and 35 without a remainder. Spelled out, it is the greatest common factor of 55 and 35. Here you can find the gcf of 55 and 35, 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 55 and 35, but also that of three or more integers including fifty-five and thirty-five for example. Keep reading to learn everything about the gcf (55,35) and the terms related to it.

What is the GCF of 55 and 35

If you just want to know what is the greatest common factor of 55 and 35, it is 5. Usually, this is written as

gcf(55,35) = 5

The gcf of 55 and 35 can be obtained like this:

  • The factors of 55 are 55, 11, 5, 1.
  • The factors of 35 are 35, 7, 5, 1.
  • The common factors of 55 and 35 are 5, 1, intersecting the two sets above.
  • In the intersection factors of 55 ∩ factors of 35 the greatest element is 5.
  • Therefore, the greatest common factor of 55 and 35 is 5.

Taking the above into account you also know how to find all the common factors of 55 and 35, not just the greatest. In the next section we show you how to calculate the gcf of fifty-five and thirty-five by means of two more methods.

How to find the GCF of 55 and 35

The greatest common factor of 55 and 35 can be computed by using the least common multiple aka lcm of 55 and 35. This is the easiest approach:

gcf (55,35) = $\frac{55 \times 35}{lcm(55,35)} = \frac{1925}{385}$ = 5

Alternatively, the gcf of 55 and 35 can be found using the prime factorization of 55 and 35:

  • The prime factorization of 55 is: 5 x 11
  • The prime factorization of 35 is: 5 x 7
  • The prime factors and multiplicities 55 and 35 have in common are: 5
  • 5 is the gcf of 55 and 35
  • gcf(55,35) = 5

In any case, the easiest way to compute the gcf of two numbers like 55 and 35 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 55,35. The calculation is conducted automatically.

The gcf is...
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Use of GCF of 55 and 35

What is the greatest common factor of 55 and 35 used for? Answer: It is helpful for reducing fractions like 55 / 35. Just divide the nominator as well as the denominator by the gcf (55,35) to reduce the fraction to lowest terms.

$\frac{55}{35} = \frac{\frac{55}{5}}{\frac{35}{5}} = \frac{11}{7}$.

Properties of GCF of 55 and 35

The most important properties of the gcf(55,35) are:

  • Commutative property: gcf(55,35) = gcf(35,55)
  • Associative property: gcf(55,35,n) = gcf(gcf(35,55),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 55 and 35 is 5. In common notation: gcf (55,35) = 5.

If you have been searching for gcf 55 and 35 or gcf 55 35 then you have come to the correct page, too. The same is the true if you typed gcf for 55 and 35 in your favorite search engine.

Note that you can find the greatest common factor of many integer pairs including fifty-five / thirty-five by using the search form in the sidebar of this page.

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