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 2560, 2565 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 2560 and 2565 is 5.
GCF(2560,2565) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 2560
2 | 2560 |
2 | 1280 |
2 | 640 |
2 | 320 |
2 | 160 |
2 | 80 |
2 | 40 |
2 | 20 |
2 | 10 |
5 | 5 |
1 |
Prime factors of 2560 are 2,5. Prime factorization of 2560 in exponential form is:
2560 = 29×51
Prime Factorization of 2565
3 | 2565 |
3 | 855 |
3 | 285 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 2565 are 3,5,19. Prime factorization of 2565 in exponential form is:
2565 = 33×51×191
∴ So by taking common prime factors GCF of 2560 and 2565 is 5
Factors of 2560
List of positive integer factors of 2560 that divides 2560 without a remainder.
1,2,4,5,8,10,16,20,32,40,64,80,128,160,256,320,512,640,1280,2560
Factors of 2565
List of positive integer factors of 2565 that divides 2565 without a remainder.
1,3,5,9,15,19,27,45,57,95,135,171,285,513,855,2565
Greatest Common Factor
We found the factors and prime factorization of 2560 and 2565. The biggest common factor number is the GCF number.
So the greatest common factor 2560 and 2565 is 5.
Also check out the Least Common Multiple of 2560 and 2565
(i) The GCF of 2560 and 2565 is associative
GCF of 2560 and 2565 = GCF of 2565 and 2560
1. What is the GCF of 2560 and 2565?
Answer: GCF of 2560 and 2565 is 5.
2. What are the Factors of 2560?
Answer: Factors of 2560 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560. There are 20 integers that are factors of 2560. The greatest factor of 2560 is 2560.
3. What are the Factors of 2565?
Answer: Factors of 2565 are 1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565. There are 16 integers that are factors of 2565. The greatest factor of 2565 is 2565.
4. How to Find the GCF of 2560 and 2565?
Answer:
Greatest Common Factor of 2560 and 2565 = 5
Step 1: Find the prime factorization of 2560
2560 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5
Step 2: Find the prime factorization of 2565
2565 = 3 x 3 x 3 x 5 x 19
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 2560 and 2565 is 5