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, 679 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 678 and 679 is 1.
GCF(678,679) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
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 679
7 | 679 |
97 | 97 |
1 |
Prime factors of 679 are 7,97. Prime factorization of 679 in exponential form is:
679 = 71×971
∴ So by taking common prime factors GCF of 678 and 679 is 1
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 679
List of positive integer factors of 679 that divides 679 without a remainder.
1,7,97,679
Greatest Common Factor
We found the factors and prime factorization of 678 and 679. The biggest common factor number is the GCF number.
So the greatest common factor 678 and 679 is 1.
Also check out the Least Common Multiple of 678 and 679
(i) The GCF of 678 and 679 is associative
GCF of 678 and 679 = GCF of 679 and 678
1. What is the GCF of 678 and 679?
Answer: GCF of 678 and 679 is 1.
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 679?
Answer: Factors of 679 are 1, 7, 97, 679. There are 4 integers that are factors of 679. The greatest factor of 679 is 679.
4. How to Find the GCF of 678 and 679?
Answer:
Greatest Common Factor of 678 and 679 = 1
Step 1: Find the prime factorization of 678
678 = 2 x 3 x 113
Step 2: Find the prime factorization of 679
679 = 7 x 97
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 678 and 679 is 1