Greatest Common Factor of 9 and 380

GCF(9, 380) = 1, Greatest common factor of 9 and 380 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 9 and 380. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 9 and 380 by prime factorization method

We will first find the prime factorization of 9 and 380.
Prime Factorization of 9 is 1, 3, 3 and Prime Factorization of 380 is 1, 2, 2, 5, 19.

  • Factorize\( (9) = \) \(1\times 3\times 3\)
  • Factorize\( (380) = \) \(1\times 2\times 2\times 5\times 19\)
Now we need to find any which are common for each number (1, 1) and multiply these numbers together.
\(GCF(9, 380) = 1\times 1 = 1\).

Greatest Common Factor of 9 and 380 by matching factors method

List of positive integers factors of 9 leaving a remainder zero is 1, 3, 9
List of positive integers factors of 380 leaving a remainder zero is 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
As you can see, 1 is the greatest and common number that 9 and 380 divides into.
So the greatest common factor 9 and 380 is 1.
\(GCF(9, 380) = 1\).

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