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 821, 824 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 821 and 824 is 1.
GCF(821,824) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 821
821 | 821 |
1 |
Prime factors of 821 are 821. Prime factorization of 821 in exponential form is:
821 = 8211
Prime Factorization of 824
2 | 824 |
2 | 412 |
2 | 206 |
103 | 103 |
1 |
Prime factors of 824 are 2.Prime factorization of 824 in exponential form is:
824 = 23×1031
∴ So by taking common prime factors GCF of 821 and 824 is 1
Factors of 821
List of positive integer factors of 821 that divides 821 without a remainder.
1,821
Factors of 824
List of positive integer factors of 824 that divides 824 without a remainder.
1,2,4,8,103,206,412,824
Greatest Common Factor
We found the factors and prime factorization of 821 and 824. The biggest common factor number is the GCF number.
So the greatest common factor 821 and 824 is 1.
Also check out the Least Common Multiple of 821 and 824
(i) The GCF of 821 and 824 is associative
GCF of 821 and 824 = GCF of 824 and 821
1. What is the GCF of 821 and 824?
Answer: GCF of 821 and 824 is 1.
2. What are the Factors of 821?
Answer: Factors of 821 are 1, 821. There are 2 integers that are factors of 821. The greatest factor of 821 is 821.
3. What are the Factors of 824?
Answer: Factors of 824 are 1, 2, 4, 8, 103, 206, 412, 824. There are 8 integers that are factors of 824. The greatest factor of 824 is 824.
4. How to Find the GCF of 821 and 824?
Answer:
Greatest Common Factor of 821 and 824 = 1
Step 1: Find the prime factorization of 821
821 = 821
Step 2: Find the prime factorization of 824
824 = 2 x 2 x 2 x 103
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 821 and 824 is 1