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 2805, 2812 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 2805 and 2812 is 1.
GCF(2805,2812) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 2805
3 | 2805 |
5 | 935 |
11 | 187 |
17 | 17 |
1 |
Prime factors of 2805 are 3,5,11,17. Prime factorization of 2805 in exponential form is:
2805 = 31×51×111×171
Prime Factorization of 2812
2 | 2812 |
2 | 1406 |
19 | 703 |
37 | 37 |
1 |
Prime factors of 2812 are 2,19,37. Prime factorization of 2812 in exponential form is:
2812 = 22×191×371
∴ So by taking common prime factors GCF of 2805 and 2812 is 1
Factors of 2805
List of positive integer factors of 2805 that divides 2805 without a remainder.
1,3,5,11,15,17,33,51,55,85,165,187,255,561,935,2805
Factors of 2812
List of positive integer factors of 2812 that divides 2812 without a remainder.
1,2,4,19,37,38,74,76,148,703,1406,2812
Greatest Common Factor
We found the factors and prime factorization of 2805 and 2812. The biggest common factor number is the GCF number.
So the greatest common factor 2805 and 2812 is 1.
Also check out the Least Common Multiple of 2805 and 2812
(i) The GCF of 2805 and 2812 is associative
GCF of 2805 and 2812 = GCF of 2812 and 2805
1. What is the GCF of 2805 and 2812?
Answer: GCF of 2805 and 2812 is 1.
2. What are the Factors of 2805?
Answer: Factors of 2805 are 1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805. There are 16 integers that are factors of 2805. The greatest factor of 2805 is 2805.
3. What are the Factors of 2812?
Answer: Factors of 2812 are 1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812. There are 12 integers that are factors of 2812. The greatest factor of 2812 is 2812.
4. How to Find the GCF of 2805 and 2812?
Answer:
Greatest Common Factor of 2805 and 2812 = 1
Step 1: Find the prime factorization of 2805
2805 = 3 x 5 x 11 x 17
Step 2: Find the prime factorization of 2812
2812 = 2 x 2 x 19 x 37
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 2805 and 2812 is 1