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 7816, 7821 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 7816 and 7821 is 1.
GCF(7816,7821) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 7816
2 | 7816 |
2 | 3908 |
2 | 1954 |
977 | 977 |
1 |
Prime factors of 7816 are 2,977. Prime factorization of 7816 in exponential form is:
7816 = 23×9771
Prime Factorization of 7821
3 | 7821 |
3 | 2607 |
11 | 869 |
79 | 79 |
1 |
Prime factors of 7821 are 3,11,79. Prime factorization of 7821 in exponential form is:
7821 = 32×111×791
∴ So by taking common prime factors GCF of 7816 and 7821 is 1
Factors of 7816
List of positive integer factors of 7816 that divides 7816 without a remainder.
1,2,4,8,977,1954,3908,7816
Factors of 7821
List of positive integer factors of 7821 that divides 7821 without a remainder.
1,3,9,11,33,79,99,237,711,869,2607,7821
Greatest Common Factor
We found the factors and prime factorization of 7816 and 7821. The biggest common factor number is the GCF number.
So the greatest common factor 7816 and 7821 is 1.
Also check out the Least Common Multiple of 7816 and 7821
(i) The GCF of 7816 and 7821 is associative
GCF of 7816 and 7821 = GCF of 7821 and 7816
1. What is the GCF of 7816 and 7821?
Answer: GCF of 7816 and 7821 is 1.
2. What are the Factors of 7816?
Answer: Factors of 7816 are 1, 2, 4, 8, 977, 1954, 3908, 7816. There are 8 integers that are factors of 7816. The greatest factor of 7816 is 7816.
3. What are the Factors of 7821?
Answer: Factors of 7821 are 1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2607, 7821. There are 12 integers that are factors of 7821. The greatest factor of 7821 is 7821.
4. How to Find the GCF of 7816 and 7821?
Answer:
Greatest Common Factor of 7816 and 7821 = 1
Step 1: Find the prime factorization of 7816
7816 = 2 x 2 x 2 x 977
Step 2: Find the prime factorization of 7821
7821 = 3 x 3 x 11 x 79
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 7816 and 7821 is 1