Greatest Common Factor of 68 and 7854

GCF(68, 7854) = 34, Greatest common factor of 68 and 7854 is 34. 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 68 and 7854. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.

Greatest Common Factor of 68 and 7854 by prime factorization method

We will first find the prime factorization of 68 and 7854.
Prime Factorization of 68 is 1, 2, 2, 17 and Prime Factorization of 7854 is 1, 2, 3, 7, 11, 17.

  • Factorize\( (68) = \) \(1\times 2\times 2\times 17\)
  • Factorize\( (7854) = \) \(1\times 2\times 3\times 7\times 11\times 17\)
Now we need to find any which are common for each number (1, 2, 17) and multiply these numbers together.
\(GCF(68, 7854) = 1\times 2\times 17 = 34\).

Greatest Common Factor of 68 and 7854 by matching factors method

List of positive integers factors of 68 leaving a remainder zero is 1, 2, 4, 17, 34, 68
List of positive integers factors of 7854 leaving a remainder zero is 1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 33, 34, 42, 51, 66, 77, 102, 119, 154, 187, 231, 238, 357, 374, 462, 561, 714, 1122, 1309, 2618, 3927, 7854
As you can see, 34 is the greatest and common number that 68 and 7854 divides into.
So the greatest common factor 68 and 7854 is 34.
\(GCF(68, 7854) = 34\).

If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
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