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 1815, 1822 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1815 and 1822 is 1.
GCF(1815,1822) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1815
3 | 1815 |
5 | 605 |
11 | 121 |
11 | 11 |
1 |
Prime factors of 1815 are 3,5,11. Prime factorization of 1815 in exponential form is:
1815 = 31×51×112
Prime Factorization of 1822
2 | 1822 |
911 | 911 |
1 |
Prime factors of 1822 are 2,911. Prime factorization of 1822 in exponential form is:
1822 = 21×9111
∴ So by taking common prime factors GCF of 1815 and 1822 is 1
Factors of 1815
List of positive integer factors of 1815 that divides 1815 without a remainder.
1,3,5,11,15,33,55,121,165,363,605,1815
Factors of 1822
List of positive integer factors of 1822 that divides 1822 without a remainder.
1,2,911,1822
Greatest Common Factor
We found the factors and prime factorization of 1815 and 1822. The biggest common factor number is the GCF number.
So the greatest common factor 1815 and 1822 is 1.
Also check out the Least Common Multiple of 1815 and 1822
(i) The GCF of 1815 and 1822 is associative
GCF of 1815 and 1822 = GCF of 1822 and 1815
1. What is the GCF of 1815 and 1822?
Answer: GCF of 1815 and 1822 is 1.
2. What are the Factors of 1815?
Answer: Factors of 1815 are 1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815. There are 12 integers that are factors of 1815. The greatest factor of 1815 is 1815.
3. What are the Factors of 1822?
Answer: Factors of 1822 are 1, 2, 911, 1822. There are 4 integers that are factors of 1822. The greatest factor of 1822 is 1822.
4. How to Find the GCF of 1815 and 1822?
Answer:
Greatest Common Factor of 1815 and 1822 = 1
Step 1: Find the prime factorization of 1815
1815 = 3 x 5 x 11 x 11
Step 2: Find the prime factorization of 1822
1822 = 2 x 911
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 1815 and 1822 is 1