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 470, 478 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 470 and 478 is 2.
GCF(470,478) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 470
2 | 470 |
5 | 235 |
47 | 47 |
1 |
Prime factors of 470 are 2,5,47. Prime factorization of 470 in exponential form is:
470 = 21×51×471
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
∴ So by taking common prime factors GCF of 470 and 478 is 2
Factors of 470
List of positive integer factors of 470 that divides 470 without a remainder.
1,2,5,10,47,94,235,470
Factors of 478
List of positive integer factors of 478 that divides 478 without a remainder.
1,2,239,478
Greatest Common Factor
We found the factors and prime factorization of 470 and 478. The biggest common factor number is the GCF number.
So the greatest common factor 470 and 478 is 2.
Also check out the Least Common Multiple of 470 and 478
(i) The GCF of 470 and 478 is associative
GCF of 470 and 478 = GCF of 478 and 470
1. What is the GCF of 470 and 478?
Answer: GCF of 470 and 478 is 2.
2. What are the Factors of 470?
Answer: Factors of 470 are 1, 2, 5, 10, 47, 94, 235, 470. There are 8 integers that are factors of 470. The greatest factor of 470 is 470.
3. 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.
4. How to Find the GCF of 470 and 478?
Answer:
Greatest Common Factor of 470 and 478 = 2
Step 1: Find the prime factorization of 470
470 = 2 x 5 x 47
Step 2: Find the prime factorization of 478
478 = 2 x 239
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 470 and 478 is 2