Greatest Common Factor of 248 and 217
GCF(248, 217) = 31, Greatest common factor of 248 and 217 is 31. 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 248 and 217. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.
Greatest Common Factor of 248 and 217 by prime factorization method
We will first find the prime factorization of 248 and 217.
Prime Factorization of 248 is 1, 2, 2, 2, 31 and Prime Factorization of 217 is 1, 7, 31.
- Factorize\( (248) = \) \(1\times 2\times 2\times 2\times 31\)
- Factorize\( (217) = \) \(1\times 7\times 31\)
Now we need to find any which are common for each number (1, 31) and multiply these numbers together.
\(GCF(248, 217) = 1\times 31 = 31\).
Greatest Common Factor of 248 and 217 by matching factors method
List of positive integers factors of 248 leaving a remainder zero is 1, 2, 4, 8, 31, 62, 124, 248
List of positive integers factors of 217 leaving a remainder zero is 1, 7, 31, 217
As you can see, 31 is the greatest and common number that 248 and 217 divides into.
So the greatest common factor 248 and 217 is 31.
\(GCF(248, 217) = 31\).
If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
