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 676, 681 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 676 and 681 is 1.
GCF(676,681) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 676
2 | 676 |
2 | 338 |
13 | 169 |
13 | 13 |
1 |
Prime factors of 676 are 2,13. Prime factorization of 676 in exponential form is:
676 = 22×132
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 676 and 681 is 1
Factors of 676
List of positive integer factors of 676 that divides 676 without a remainder.
1,2,4,13,26,52,169,338,676
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 676 and 681. The biggest common factor number is the GCF number.
So the greatest common factor 676 and 681 is 1.
Also check out the Least Common Multiple of 676 and 681
(i) The GCF of 676 and 681 is associative
GCF of 676 and 681 = GCF of 681 and 676
1. What is the GCF of 676 and 681?
Answer: GCF of 676 and 681 is 1.
2. What are the Factors of 676?
Answer: Factors of 676 are 1, 2, 4, 13, 26, 52, 169, 338, 676. There are 9 integers that are factors of 676. The greatest factor of 676 is 676.
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 676 and 681?
Answer:
Greatest Common Factor of 676 and 681 = 1
Step 1: Find the prime factorization of 676
676 = 2 x 2 x 13 x 13
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 = = 1
Step 4: Therefore, the greatest common factor of 676 and 681 is 1