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 312, 320 i.e. 8 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 312 and 320 is 8.
GCF(312,320) = 8
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 312
2 | 312 |
2 | 156 |
2 | 78 |
3 | 39 |
13 | 13 |
1 |
Prime factors of 312 are 2,3,13. Prime factorization of 312 in exponential form is:
312 = 23×31×131
Prime Factorization of 320
2 | 320 |
2 | 160 |
2 | 80 |
2 | 40 |
2 | 20 |
2 | 10 |
5 | 5 |
1 |
Prime factors of 320 are 2,5. Prime factorization of 320 in exponential form is:
320 = 26×51
∴ So by taking common prime factors GCF of 312 and 320 is 8
Factors of 312
List of positive integer factors of 312 that divides 312 without a remainder.
1,2,3,4,6,8,12,13,24,26,39,52,78,104,156,312
Factors of 320
List of positive integer factors of 320 that divides 320 without a remainder.
1,2,4,5,8,10,16,20,32,40,64,80,160,320
Greatest Common Factor
We found the factors and prime factorization of 312 and 320. The biggest common factor number is the GCF number.
So the greatest common factor 312 and 320 is 8.
Also check out the Least Common Multiple of 312 and 320
(i) The GCF of 312 and 320 is associative
GCF of 312 and 320 = GCF of 320 and 312
1. What is the GCF of 312 and 320?
Answer: GCF of 312 and 320 is 8.
2. What are the Factors of 312?
Answer: Factors of 312 are 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312. There are 16 integers that are factors of 312. The greatest factor of 312 is 312.
3. What are the Factors of 320?
Answer: Factors of 320 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320. There are 14 integers that are factors of 320. The greatest factor of 320 is 320.
4. How to Find the GCF of 312 and 320?
Answer:
Greatest Common Factor of 312 and 320 = 8
Step 1: Find the prime factorization of 312
312 = 2 x 2 x 2 x 3 x 13
Step 2: Find the prime factorization of 320
320 = 2 x 2 x 2 x 2 x 2 x 2 x 5
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 312 and 320 is 8