Greatest Common Factor of 124 and 7

GCF(124, 7) = 1, Greatest common factor of 124 and 7 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 124 and 7. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 124 and 7 by prime factorization method

We will first find the prime factorization of 124 and 7.
Prime Factorization of 124 is 1, 2, 2, 31 and Prime Factorization of 7 is 1, 7.

  • Factorize\( (124) = \) \(1\times 2\times 2\times 31\)
  • Factorize\( (7) = \) \(1\times 7\)
Now we need to find any which are common for each number (1, 1) and multiply these numbers together.
\(GCF(124, 7) = 1\times 1 = 1\).

Greatest Common Factor of 124 and 7 by matching factors method

List of positive integers factors of 124 leaving a remainder zero is 1, 2, 4, 31, 62, 124
List of positive integers factors of 7 leaving a remainder zero is 1, 7
As you can see, 1 is the greatest and common number that 124 and 7 divides into.
So the greatest common factor 124 and 7 is 1.
\(GCF(124, 7) = 1\).

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