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 7791, 7798 i.e. 7 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7791 and 7798 is 7.
GCF(7791,7798) = 7
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7791
3 | 7791 |
7 | 2597 |
7 | 371 |
53 | 53 |
1 |
Prime factors of 7791 are 3,7,53. Prime factorization of 7791 in exponential form is:
7791 = 31×72×531
Prime Factorization of 7798
2 | 7798 |
7 | 3899 |
557 | 557 |
1 |
Prime factors of 7798 are 2,7,557. Prime factorization of 7798 in exponential form is:
7798 = 21×71×5571
∴ So by taking common prime factors GCF of 7791 and 7798 is 7
Factors of 7791
List of positive integer factors of 7791 that divides 7791 without a remainder.
1,3,7,21,49,53,147,159,371,1113,2597,7791
Factors of 7798
List of positive integer factors of 7798 that divides 7798 without a remainder.
1,2,7,14,557,1114,3899,7798
Greatest Common Factor
We found the factors and prime factorization of 7791 and 7798. The biggest common factor number is the GCF number.
So the greatest common factor 7791 and 7798 is 7.
Also check out the Least Common Multiple of 7791 and 7798
(i) The GCF of 7791 and 7798 is associative
GCF of 7791 and 7798 = GCF of 7798 and 7791
1. What is the GCF of 7791 and 7798?
Answer: GCF of 7791 and 7798 is 7.
2. What are the Factors of 7791?
Answer: Factors of 7791 are 1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 7791. There are 12 integers that are factors of 7791. The greatest factor of 7791 is 7791.
3. What are the Factors of 7798?
Answer: Factors of 7798 are 1, 2, 7, 14, 557, 1114, 3899, 7798. There are 8 integers that are factors of 7798. The greatest factor of 7798 is 7798.
4. How to Find the GCF of 7791 and 7798?
Answer:
Greatest Common Factor of 7791 and 7798 = 7
Step 1: Find the prime factorization of 7791
7791 = 3 x 7 x 7 x 53
Step 2: Find the prime factorization of 7798
7798 = 2 x 7 x 557
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 7
Step 4: Therefore, the greatest common factor of 7791 and 7798 is 7