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 478, 485 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 478 and 485 is 1.
GCF(478,485) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 478
2 | 478 |
239 | 239 |
1 |
Prime factors of 478 are 2,239. Prime factorization of 478 in exponential form is:
478 = 21×2391
Prime Factorization of 485
5 | 485 |
97 | 97 |
1 |
Prime factors of 485 are 5,97. Prime factorization of 485 in exponential form is:
485 = 51×971
∴ So by taking common prime factors GCF of 478 and 485 is 1
Factors of 478
List of positive integer factors of 478 that divides 478 without a remainder.
1,2,239,478
Factors of 485
List of positive integer factors of 485 that divides 485 without a remainder.
1,5,97,485
Greatest Common Factor
We found the factors and prime factorization of 478 and 485. The biggest common factor number is the GCF number.
So the greatest common factor 478 and 485 is 1.
Also check out the Least Common Multiple of 478 and 485
(i) The GCF of 478 and 485 is associative
GCF of 478 and 485 = GCF of 485 and 478
1. What is the GCF of 478 and 485?
Answer: GCF of 478 and 485 is 1.
2. What are the Factors of 478?
Answer: Factors of 478 are 1, 2, 239, 478. There are 4 integers that are factors of 478. The greatest factor of 478 is 478.
3. What are the Factors of 485?
Answer: Factors of 485 are 1, 5, 97, 485. There are 4 integers that are factors of 485. The greatest factor of 485 is 485.
4. How to Find the GCF of 478 and 485?
Answer:
Greatest Common Factor of 478 and 485 = 1
Step 1: Find the prime factorization of 478
478 = 2 x 239
Step 2: Find the prime factorization of 485
485 = 5 x 97
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 478 and 485 is 1