Greatest Common Factor of 17 and 238

GCF(17, 238) = 17, Greatest common factor of 17 and 238 is 17. 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 17 and 238. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 17 and 238 by prime factorization method

We will first find the prime factorization of 17 and 238.
Prime Factorization of 17 is 1, 17 and Prime Factorization of 238 is 1, 2, 7, 17.

  • Factorize\( (17) = \) \(1\times 17\)
  • Factorize\( (238) = \) \(1\times 2\times 7\times 17\)
Now we need to find any which are common for each number (1, 17) and multiply these numbers together.
\(GCF(17, 238) = 1\times 17 = 17\).

Greatest Common Factor of 17 and 238 by matching factors method

List of positive integers factors of 17 leaving a remainder zero is 1, 17
List of positive integers factors of 238 leaving a remainder zero is 1, 2, 7, 14, 17, 34, 119, 238
As you can see, 17 is the greatest and common number that 17 and 238 divides into.
So the greatest common factor 17 and 238 is 17.
\(GCF(17, 238) = 17\).

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