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 791, 798 i.e. 7 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 791 and 798 is 7.
GCF(791,798) = 7
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 791
7 | 791 |
113 | 113 |
1 |
Prime factors of 791 are 7,113. Prime factorization of 791 in exponential form is:
791 = 71×1131
Prime Factorization of 798
2 | 798 |
3 | 399 |
7 | 133 |
19 | 19 |
1 |
Prime factors of 798 are 2,3,7,19. Prime factorization of 798 in exponential form is:
798 = 21×31×71×191
∴ So by taking common prime factors GCF of 791 and 798 is 7
Factors of 791
List of positive integer factors of 791 that divides 791 without a remainder.
1,7,113,791
Factors of 798
List of positive integer factors of 798 that divides 798 without a remainder.
1,2,3,6,7,14,19,21,38,42,57,114,133,266,399,798
Greatest Common Factor
We found the factors and prime factorization of 791 and 798. The biggest common factor number is the GCF number.
So the greatest common factor 791 and 798 is 7.
Also check out the Least Common Multiple of 791 and 798
(i) The GCF of 791 and 798 is associative
GCF of 791 and 798 = GCF of 798 and 791
1. What is the GCF of 791 and 798?
Answer: GCF of 791 and 798 is 7.
2. What are the Factors of 791?
Answer: Factors of 791 are 1, 7, 113, 791. There are 4 integers that are factors of 791. The greatest factor of 791 is 791.
3. What are the Factors of 798?
Answer: Factors of 798 are 1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798. There are 16 integers that are factors of 798. The greatest factor of 798 is 798.
4. How to Find the GCF of 791 and 798?
Answer:
Greatest Common Factor of 791 and 798 = 7
Step 1: Find the prime factorization of 791
791 = 7 x 113
Step 2: Find the prime factorization of 798
798 = 2 x 3 x 7 x 19
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 791 and 798 is 7