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 812, 813 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 812 and 813 is 1.
GCF(812,813) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 812
2 | 812 |
2 | 406 |
7 | 203 |
29 | 29 |
1 |
Prime factors of 812 are 2,7,29. Prime factorization of 812 in exponential form is:
812 = 22×71×291
Prime Factorization of 813
3 | 813 |
271 | 271 |
1 |
Prime factors of 813 are 3,271. Prime factorization of 813 in exponential form is:
813 = 31×2711
∴ So by taking common prime factors GCF of 812 and 813 is 1
Factors of 812
List of positive integer factors of 812 that divides 812 without a remainder.
1,2,4,7,14,28,29,58,116,203,406,812
Factors of 813
List of positive integer factors of 813 that divides 813 without a remainder.
1,3,271,813
Greatest Common Factor
We found the factors and prime factorization of 812 and 813. The biggest common factor number is the GCF number.
So the greatest common factor 812 and 813 is 1.
Also check out the Least Common Multiple of 812 and 813
(i) The GCF of 812 and 813 is associative
GCF of 812 and 813 = GCF of 813 and 812
1. What is the GCF of 812 and 813?
Answer: GCF of 812 and 813 is 1.
2. What are the Factors of 812?
Answer: Factors of 812 are 1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812. There are 12 integers that are factors of 812. The greatest factor of 812 is 812.
3. What are the Factors of 813?
Answer: Factors of 813 are 1, 3, 271, 813. There are 4 integers that are factors of 813. The greatest factor of 813 is 813.
4. How to Find the GCF of 812 and 813?
Answer:
Greatest Common Factor of 812 and 813 = 1
Step 1: Find the prime factorization of 812
812 = 2 x 2 x 7 x 29
Step 2: Find the prime factorization of 813
813 = 3 x 271
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 812 and 813 is 1