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 2478, 2485 i.e. 7 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 2478 and 2485 is 7.
GCF(2478,2485) = 7
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 2478
2 | 2478 |
3 | 1239 |
7 | 413 |
59 | 59 |
1 |
Prime factors of 2478 are 2,3,7,59. Prime factorization of 2478 in exponential form is:
2478 = 21×31×71×591
Prime Factorization of 2485
5 | 2485 |
7 | 497 |
71 | 71 |
1 |
Prime factors of 2485 are 5,7,71. Prime factorization of 2485 in exponential form is:
2485 = 51×71×711
∴ So by taking common prime factors GCF of 2478 and 2485 is 7
Factors of 2478
List of positive integer factors of 2478 that divides 2478 without a remainder.
1,2,3,6,7,14,21,42,59,118,177,354,413,826,1239,2478
Factors of 2485
List of positive integer factors of 2485 that divides 2485 without a remainder.
1,5,7,35,71,355,497,2485
Greatest Common Factor
We found the factors and prime factorization of 2478 and 2485. The biggest common factor number is the GCF number.
So the greatest common factor 2478 and 2485 is 7.
Also check out the Least Common Multiple of 2478 and 2485
(i) The GCF of 2478 and 2485 is associative
GCF of 2478 and 2485 = GCF of 2485 and 2478
1. What is the GCF of 2478 and 2485?
Answer: GCF of 2478 and 2485 is 7.
2. What are the Factors of 2478?
Answer: Factors of 2478 are 1, 2, 3, 6, 7, 14, 21, 42, 59, 118, 177, 354, 413, 826, 1239, 2478. There are 16 integers that are factors of 2478. The greatest factor of 2478 is 2478.
3. What are the Factors of 2485?
Answer: Factors of 2485 are 1, 5, 7, 35, 71, 355, 497, 2485. There are 8 integers that are factors of 2485. The greatest factor of 2485 is 2485.
4. How to Find the GCF of 2478 and 2485?
Answer:
Greatest Common Factor of 2478 and 2485 = 7
Step 1: Find the prime factorization of 2478
2478 = 2 x 3 x 7 x 59
Step 2: Find the prime factorization of 2485
2485 = 5 x 7 x 71
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 7
Step 4: Therefore, the greatest common factor of 2478 and 2485 is 7