Greatest Common Factor of 136 and 1224

GCF(136, 1224) = 136, Greatest common factor of 136 and 1224 is 136. 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 136 and 1224. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 136 and 1224 by prime factorization method

We will first find the prime factorization of 136 and 1224.
Prime Factorization of 136 is 1, 2, 2, 2, 17 and Prime Factorization of 1224 is 1, 2, 2, 2, 3, 3, 17.

  • Factorize\( (136) = \) \(1\times 2\times 2\times 2\times 17\)
  • Factorize\( (1224) = \) \(1\times 2\times 2\times 2\times 3\times 3\times 17\)
Now we need to find any which are common for each number (1, 2, 2, 2, 17) and multiply these numbers together.
\(GCF(136, 1224) = 1\times 2\times 2\times 2\times 17 = 136\).

Greatest Common Factor of 136 and 1224 by matching factors method

List of positive integers factors of 136 leaving a remainder zero is 1, 2, 4, 8, 17, 34, 68, 136
List of positive integers factors of 1224 leaving a remainder zero is 1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 306, 408, 612, 1224
As you can see, 136 is the greatest and common number that 136 and 1224 divides into.
So the greatest common factor 136 and 1224 is 136.
\(GCF(136, 1224) = 136\).

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