Greatest Common Factor of 32 and 7820
GCF(32, 7820) = 4, Greatest common factor of 32 and 7820 is 4. 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 32 and 7820. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.
Greatest Common Factor of 32 and 7820 by prime factorization method
We will first find the prime factorization of 32 and 7820.
Prime Factorization of 32 is 1, 2, 2, 2, 2, 2 and Prime Factorization of 7820 is 1, 2, 2, 5, 17, 23.
- Factorize\( (32) = \) \(1\times 2\times 2\times 2\times 2\times 2\)
- Factorize\( (7820) = \) \(1\times 2\times 2\times 5\times 17\times 23\)
Now we need to find any which are common for each number (1, 2, 2) and multiply these numbers together.
\(GCF(32, 7820) = 1\times 2\times 2 = 4\).
Greatest Common Factor of 32 and 7820 by matching factors method
List of positive integers factors of 32 leaving a remainder zero is 1, 2, 4, 8, 16, 32
List of positive integers factors of 7820 leaving a remainder zero is 1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820
As you can see, 4 is the greatest and common number that 32 and 7820 divides into.
So the greatest common factor 32 and 7820 is 4.
\(GCF(32, 7820) = 4\).
If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
