The gcf of 11 and 85 is the largest positive integer that divides the numbers 11 and 85 without a remainder. Spelled out, it is the greatest common factor of 11 and 85. Here you can find the gcf of 11 and 85, along with a total of three methods for computing it.
What is the GCF of 11 and 85
If you just want to know what is the greatest common factor of 11 and 85, it is 1. Usually, this is written as
The gcf of 11 and 85 can be obtained like this:
- The factors of 11 are 11, 1.
- The factors of 85 are 85, 17, 5, 1.
- The common factors of 11 and 85 are 1, intersecting the two sets above.
- In the intersection factors of 11 ∩ factors of 85 the greatest element is 1.
- Therefore, the greatest common factor of 11 and 85 is 1.
Taking the above into account you also know how to find all the common factors of 11 and 85, not just the greatest. In the next section we show you how to calculate the gcf of eleven and eighty-five by means of two more methods.
How to find the GCF of 11 and 85
The greatest common factor of 11 and 85 can be computed by using the least common multiple aka lcm of 11 and 85. This is the easiest approach:
Alternatively, the gcf of 11 and 85 can be found using the prime factorization of 11 and 85:
- The prime factorization of 11 is: 11
- The prime factorization of 85 is: 5 x 17
- The prime factors and multiplicities 11 and 85 have in common are: 1
- 1 is the gcf of 11 and 85
- gcf(11,85) = 1
In any case, the easiest way to compute the gcf of two numbers like 11 and 85 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 11,85. The calculation is conducted automatically.
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Use of GCF of 11 and 85
What is the greatest common factor of 11 and 85 used for? Answer: It is helpful for reducing fractions like 11 / 85. Just divide the nominator as well as the denominator by the gcf (11,85) to reduce the fraction to lowest terms.
Properties of GCF of 11 and 85
The most important properties of the gcf(11,85) are:
- Commutative property: gcf(11,85) = gcf(85,11)
- Associative property: gcf(11,85,n) = gcf(gcf(85,11),n)
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 11 and 85 is 1. In common notation: gcf (11,85) = 1.
If you have been searching for gcf 11 and 85 or gcf 11 85 then you have come to the correct page, too. The same is the true if you typed gcf for 11 and 85 in your favorite search engine.
Note that you can find the greatest common factor of many integer pairs including eleven / eighty-five by using the search form in the sidebar of this page.
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