Greatest Common Factor of 5 and 289

GCF(5, 289) = 1, Greatest common factor of 5 and 289 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 5 and 289. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 5 and 289 by prime factorization method

We will first find the prime factorization of 5 and 289.
Prime Factorization of 5 is 1, 5 and Prime Factorization of 289 is 1, 17, 17.

  • Factorize\( (5) = \) \(1\times 5\)
  • Factorize\( (289) = \) \(1\times 17\times 17\)
Now we need to find any which are common for each number (1, 1) and multiply these numbers together.
\(GCF(5, 289) = 1\times 1 = 1\).

Greatest Common Factor of 5 and 289 by matching factors method

List of positive integers factors of 5 leaving a remainder zero is 1, 5
List of positive integers factors of 289 leaving a remainder zero is 1, 17, 289
As you can see, 1 is the greatest and common number that 5 and 289 divides into.
So the greatest common factor 5 and 289 is 1.
\(GCF(5, 289) = 1\).

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