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 920, 928 i.e. 8 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 920 and 928 is 8.
GCF(920,928) = 8
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 920
2 | 920 |
2 | 460 |
2 | 230 |
5 | 115 |
23 | 23 |
1 |
Prime factors of 920 are 2,5,23. Prime factorization of 920 in exponential form is:
920 = 23×51×231
Prime Factorization of 928
2 | 928 |
2 | 464 |
2 | 232 |
2 | 116 |
2 | 58 |
29 | 29 |
1 |
Prime factors of 928 are 2,29. Prime factorization of 928 in exponential form is:
928 = 25×291
∴ So by taking common prime factors GCF of 920 and 928 is 8
Factors of 920
List of positive integer factors of 920 that divides 920 without a remainder.
1,2,4,5,8,10,20,23,40,46,92,115,184,230,460,920
Factors of 928
List of positive integer factors of 928 that divides 928 without a remainder.
1,2,4,8,16,29,32,58,116,232,464,928
Greatest Common Factor
We found the factors and prime factorization of 920 and 928. The biggest common factor number is the GCF number.
So the greatest common factor 920 and 928 is 8.
Also check out the Least Common Multiple of 920 and 928
(i) The GCF of 920 and 928 is associative
GCF of 920 and 928 = GCF of 928 and 920
1. What is the GCF of 920 and 928?
Answer: GCF of 920 and 928 is 8.
2. What are the Factors of 920?
Answer: Factors of 920 are 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920. There are 16 integers that are factors of 920. The greatest factor of 920 is 920.
3. What are the Factors of 928?
Answer: Factors of 928 are 1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 928. There are 12 integers that are factors of 928. The greatest factor of 928 is 928.
4. How to Find the GCF of 920 and 928?
Answer:
Greatest Common Factor of 920 and 928 = 8
Step 1: Find the prime factorization of 920
920 = 2 x 2 x 2 x 5 x 23
Step 2: Find the prime factorization of 928
928 = 2 x 2 x 2 x 2 x 2 x 29
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2 x 2 x 2 = 8
Step 4: Therefore, the greatest common factor of 920 and 928 is 8