Greatest Common Factor of 72 and 996

GCF(72, 996) = 12, Greatest common factor of 72 and 996 is 12. 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 72 and 996. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 72 and 996 by prime factorization method

We will first find the prime factorization of 72 and 996.
Prime Factorization of 72 is 1, 2, 2, 2, 3, 3 and Prime Factorization of 996 is 1, 2, 2, 3, 83.

  • Factorize\( (72) = \) \(1\times 2\times 2\times 2\times 3\times 3\)
  • Factorize\( (996) = \) \(1\times 2\times 2\times 3\times 83\)
Now we need to find any which are common for each number (1, 2, 2, 3) and multiply these numbers together.
\(GCF(72, 996) = 1\times 2\times 2\times 3 = 12\).

Greatest Common Factor of 72 and 996 by matching factors method

List of positive integers factors of 72 leaving a remainder zero is 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
List of positive integers factors of 996 leaving a remainder zero is 1, 2, 3, 4, 6, 12, 83, 166, 249, 332, 498, 996
As you can see, 12 is the greatest and common number that 72 and 996 divides into.
So the greatest common factor 72 and 996 is 12.
\(GCF(72, 996) = 12\).

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