Greatest Common Factor of 88 and 99

GCF(88, 99) = 11, Greatest common factor of 88 and 99 is 11. Greatest Common Factor or Greatest Common Divisor of two numbers is the largest integer by which both the numbers can be divided. There are two different methods to calculate Greatest Common Factor of 88 and 99. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 88 and 99 by prime factorization method

We will first find the prime factorization of 88 and 99.
Prime Factorization of 88 is 1, 2, 2, 2, 11 and Prime Factorization of 99 is 1, 3, 3, 11.

  • Factorize\( (88) = \) \(1\times 2\times 2\times 2\times 11\)
  • Factorize\( (99) = \) \(1\times 3\times 3\times 11\)
Now we need to find any which are common for each number (1, 11) and multiply these numbers together.
\(GCF(88, 99) = 1\times 11 = 11\).

Greatest Common Factor of 88 and 99 by matching factors method

List of positive integers factors of 88 leaving a remainder zero is 1, 2, 4, 8, 11, 22, 44, 88
List of positive integers factors of 99 leaving a remainder zero is 1, 3, 9, 11, 33, 99
As you can see, 11 is the greatest and common number that 88 and 99 divides into.
So the greatest common factor 88 and 99 is 11.
\(GCF(88, 99) = 11\).

If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
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