Greatest Common Factor of 20 and 547

GCF(20, 547) = 1, Greatest common factor of 20 and 547 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 20 and 547. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 20 and 547 by prime factorization method

We will first find the prime factorization of 20 and 547.
Prime Factorization of 20 is 1, 2, 2, 5 and Prime Factorization of 547 is 1, 547.

  • Factorize\( (20) = \) \(1\times 2\times 2\times 5\)
  • Factorize\( (547) = \) \(1\times 547\)
Now we need to find any which are common for each number (1, 1) and multiply these numbers together.
\(GCF(20, 547) = 1\times 1 = 1\).

Greatest Common Factor of 20 and 547 by matching factors method

List of positive integers factors of 20 leaving a remainder zero is 1, 2, 4, 5, 10, 20
List of positive integers factors of 547 leaving a remainder zero is 1, 547
As you can see, 1 is the greatest and common number that 20 and 547 divides into.
So the greatest common factor 20 and 547 is 1.
\(GCF(20, 547) = 1\).

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