Greatest Common Factor of 128 and 586

GCF(128, 586) = 2, Greatest common factor of 128 and 586 is 2. 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 128 and 586. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 128 and 586 by prime factorization method

We will first find the prime factorization of 128 and 586.
Prime Factorization of 128 is 1, 2, 2, 2, 2, 2, 2, 2 and Prime Factorization of 586 is 1, 2, 293.

  • Factorize\( (128) = \) \(1\times 2\times 2\times 2\times 2\times 2\times 2\times 2\)
  • Factorize\( (586) = \) \(1\times 2\times 293\)
Now we need to find any which are common for each number (1, 2) and multiply these numbers together.
\(GCF(128, 586) = 1\times 2 = 2\).

Greatest Common Factor of 128 and 586 by matching factors method

List of positive integers factors of 128 leaving a remainder zero is 1, 2, 4, 8, 16, 32, 64, 128
List of positive integers factors of 586 leaving a remainder zero is 1, 2, 293, 586
As you can see, 2 is the greatest and common number that 128 and 586 divides into.
So the greatest common factor 128 and 586 is 2.
\(GCF(128, 586) = 2\).

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