Greatest Common Factor of 678 and 681

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 678, 681 i.e. 3 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 678 and 681 is 3.

GCF(678,681) = 3

GCF of 678 and 681

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 678 and 681

GCF of 678 and 681 is 3

Prime Factorization of 678


2 678
3 339
113 113
1

Prime factors of 678 are 2,3,113. Prime factorization of 678 in exponential form is:

678 = 21×31×1131

Prime Factorization of 681


3 681
227 227
1

Prime factors of 681 are 3,227. Prime factorization of 681 in exponential form is:

681 = 31×2271

∴ So by taking common prime factors GCF of 678 and 681 is 3

Greatest Common Factor of 678 and 681 by matching factors method

Factors of 678

List of positive integer factors of 678 that divides 678 without a remainder.

1,2,3,6,113,226,339,678

Factors of 681

List of positive integer factors of 681 that divides 681 without a remainder.

1,3,227,681

Greatest Common Factor

We found the factors and prime factorization of 678 and 681. The biggest common factor number is the GCF number.
So the greatest common factor 678 and 681 is 3.

Also check out the Least Common Multiple of 678 and 681

Properties of GCF 678 and 681

(i) The GCF of 678 and 681 is associative

GCF of 678 and 681 = GCF of 681 and 678

Related Greatest Common Factor of 678

Related Greatest Common Factor of 681

Frequently Asked Questions on GCF of 678 and 681

1. What is the GCF of 678 and 681?

Answer: GCF of 678 and 681 is 3.

2. What are the Factors of 678?

Answer: Factors of 678 are 1, 2, 3, 6, 113, 226, 339, 678. There are 8 integers that are factors of 678. The greatest factor of 678 is 678.

3. What are the Factors of 681?

Answer: Factors of 681 are 1, 3, 227, 681. There are 4 integers that are factors of 681. The greatest factor of 681 is 681.

4. How to Find the GCF of 678 and 681?

Answer:

Greatest Common Factor of 678 and 681 = 3

Step 1: Find the prime factorization of 678

678 = 2 x 3 x 113

Step 2: Find the prime factorization of 681

681 = 3 x 227

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = 3

Step 4: Therefore, the greatest common factor of 678 and 681 is 3