Greatest Common Factor of 320 and 392
GCF(320, 392) = 8, Greatest common factor of 320 and 392 is 8. 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 320 and 392. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.
Greatest Common Factor of 320 and 392 by prime factorization method
We will first find the prime factorization of 320 and 392.
Prime Factorization of 320 is 1, 2, 2, 2, 2, 2, 2, 5 and Prime Factorization of 392 is 1, 2, 2, 2, 7, 7.
- Factorize\( (320) = \) \(1\times 2\times 2\times 2\times 2\times 2\times 2\times 5\)
- Factorize\( (392) = \) \(1\times 2\times 2\times 2\times 7\times 7\)
Now we need to find any which are common for each number (1, 2, 2, 2) and multiply these numbers together.
\(GCF(320, 392) = 1\times 2\times 2\times 2 = 8\).
Greatest Common Factor of 320 and 392 by matching factors method
List of positive integers factors of 320 leaving a remainder zero is 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
List of positive integers factors of 392 leaving a remainder zero is 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392
As you can see, 8 is the greatest and common number that 320 and 392 divides into.
So the greatest common factor 320 and 392 is 8.
\(GCF(320, 392) = 8\).
If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
