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 7813, 7820 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7813 and 7820 is 1.
GCF(7813,7820) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7813
13 | 7813 |
601 | 601 |
1 |
Prime factors of 7813 are 13,601. Prime factorization of 7813 in exponential form is:
7813 = 131×6011
Prime Factorization of 7820
2 | 7820 |
2 | 3910 |
5 | 1955 |
17 | 391 |
23 | 23 |
1 |
Prime factors of 7820 are 2,5,17,23. Prime factorization of 7820 in exponential form is:
7820 = 22×51×171×231
∴ So by taking common prime factors GCF of 7813 and 7820 is 1
Factors of 7813
List of positive integer factors of 7813 that divides 7813 without a remainder.
1,13,601,7813
Factors of 7820
List of positive integer factors of 7820 that divides 7820 without a remainder.
1,2,4,5,10,17,20,23,34,46,68,85,92,115,170,230,340,391,460,782,1564,1955,3910,7820
Greatest Common Factor
We found the factors and prime factorization of 7813 and 7820. The biggest common factor number is the GCF number.
So the greatest common factor 7813 and 7820 is 1.
Also check out the Least Common Multiple of 7813 and 7820
(i) The GCF of 7813 and 7820 is associative
GCF of 7813 and 7820 = GCF of 7820 and 7813
1. What is the GCF of 7813 and 7820?
Answer: GCF of 7813 and 7820 is 1.
2. What are the Factors of 7813?
Answer: Factors of 7813 are 1, 13, 601, 7813. There are 4 integers that are factors of 7813. The greatest factor of 7813 is 7813.
3. What are the Factors of 7820?
Answer: Factors of 7820 are 1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820. There are 24 integers that are factors of 7820. The greatest factor of 7820 is 7820.
4. How to Find the GCF of 7813 and 7820?
Answer:
Greatest Common Factor of 7813 and 7820 = 1
Step 1: Find the prime factorization of 7813
7813 = 13 x 601
Step 2: Find the prime factorization of 7820
7820 = 2 x 2 x 5 x 17 x 23
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 7813 and 7820 is 1