Greatest Common Factor of 136 and 1990
GCF(136, 1990) = 2, Greatest common factor of 136 and 1990 is 2. 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 136 and 1990. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.
Greatest Common Factor of 136 and 1990 by prime factorization method
We will first find the prime factorization of 136 and 1990.
Prime Factorization of 136 is 1, 2, 2, 2, 17 and Prime Factorization of 1990 is 1, 2, 5, 199.
- Factorize\( (136) = \) \(1\times 2\times 2\times 2\times 17\)
- Factorize\( (1990) = \) \(1\times 2\times 5\times 199\)
Now we need to find any which are common for each number (1, 2) and multiply these numbers together.
\(GCF(136, 1990) = 1\times 2 = 2\).
Greatest Common Factor of 136 and 1990 by matching factors method
List of positive integers factors of 136 leaving a remainder zero is 1, 2, 4, 8, 17, 34, 68, 136
List of positive integers factors of 1990 leaving a remainder zero is 1, 2, 5, 10, 199, 398, 995, 1990
As you can see, 2 is the greatest and common number that 136 and 1990 divides into.
So the greatest common factor 136 and 1990 is 2.
\(GCF(136, 1990) = 2\).
If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
