Greatest Common Factor of 172 and 688
GCF(172, 688) = 172, Greatest common factor of 172 and 688 is 172. 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 172 and 688. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.
Greatest Common Factor of 172 and 688 by prime factorization method
We will first find the prime factorization of 172 and 688.
Prime Factorization of 172 is 1, 2, 2, 43 and Prime Factorization of 688 is 1, 2, 2, 2, 2, 43.
- Factorize\( (172) = \) \(1\times 2\times 2\times 43\)
- Factorize\( (688) = \) \(1\times 2\times 2\times 2\times 2\times 43\)
Now we need to find any which are common for each number (1, 2, 2, 43) and multiply these numbers together.
\(GCF(172, 688) = 1\times 2\times 2\times 43 = 172\).
Greatest Common Factor of 172 and 688 by matching factors method
List of positive integers factors of 172 leaving a remainder zero is 1, 2, 4, 43, 86, 172
List of positive integers factors of 688 leaving a remainder zero is 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
As you can see, 172 is the greatest and common number that 172 and 688 divides into.
So the greatest common factor 172 and 688 is 172.
\(GCF(172, 688) = 172\).
If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
