Greatest Common Factor of 204 and 330

GCF(204, 330) = 6, Greatest common factor of 204 and 330 is 6. 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 204 and 330. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 204 and 330 by prime factorization method

We will first find the prime factorization of 204 and 330.
Prime Factorization of 204 is 1, 2, 2, 3, 17 and Prime Factorization of 330 is 1, 2, 3, 5, 11.

  • Factorize\( (204) = \) \(1\times 2\times 2\times 3\times 17\)
  • Factorize\( (330) = \) \(1\times 2\times 3\times 5\times 11\)
Now we need to find any which are common for each number (1, 2, 3) and multiply these numbers together.
\(GCF(204, 330) = 1\times 2\times 3 = 6\).

Greatest Common Factor of 204 and 330 by matching factors method

List of positive integers factors of 204 leaving a remainder zero is 1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204
List of positive integers factors of 330 leaving a remainder zero is 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330
As you can see, 6 is the greatest and common number that 204 and 330 divides into.
So the greatest common factor 204 and 330 is 6.
\(GCF(204, 330) = 6\).

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