Greatest Common Factor of 13 and 1173

GCF(13, 1173) = 1, Greatest common factor of 13 and 1173 is 1. 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 13 and 1173. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 13 and 1173 by prime factorization method

We will first find the prime factorization of 13 and 1173.
Prime Factorization of 13 is 1, 13 and Prime Factorization of 1173 is 1, 3, 17, 23.

  • Factorize\( (13) = \) \(1\times 13\)
  • Factorize\( (1173) = \) \(1\times 3\times 17\times 23\)
Now we need to find any which are common for each number (1, 1) and multiply these numbers together.
\(GCF(13, 1173) = 1\times 1 = 1\).

Greatest Common Factor of 13 and 1173 by matching factors method

List of positive integers factors of 13 leaving a remainder zero is 1, 13
List of positive integers factors of 1173 leaving a remainder zero is 1, 3, 17, 23, 51, 69, 391, 1173
As you can see, 1 is the greatest and common number that 13 and 1173 divides into.
So the greatest common factor 13 and 1173 is 1.
\(GCF(13, 1173) = 1\).

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