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 798, 802 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 798 and 802 is 2.
GCF(798,802) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
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
Prime Factorization of 802
2 | 802 |
401 | 401 |
1 |
Prime factors of 802 are 2,401. Prime factorization of 802 in exponential form is:
802 = 21×4011
∴ So by taking common prime factors GCF of 798 and 802 is 2
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
Factors of 802
List of positive integer factors of 802 that divides 802 without a remainder.
1,2,401,802
Greatest Common Factor
We found the factors and prime factorization of 798 and 802. The biggest common factor number is the GCF number.
So the greatest common factor 798 and 802 is 2.
Also check out the Least Common Multiple of 798 and 802
(i) The GCF of 798 and 802 is associative
GCF of 798 and 802 = GCF of 802 and 798
1. What is the GCF of 798 and 802?
Answer: GCF of 798 and 802 is 2.
2. 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.
3. What are the Factors of 802?
Answer: Factors of 802 are 1, 2, 401, 802. There are 4 integers that are factors of 802. The greatest factor of 802 is 802.
4. How to Find the GCF of 798 and 802?
Answer:
Greatest Common Factor of 798 and 802 = 2
Step 1: Find the prime factorization of 798
798 = 2 x 3 x 7 x 19
Step 2: Find the prime factorization of 802
802 = 2 x 401
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 798 and 802 is 2