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 1912, 1920 i.e. 8 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1912 and 1920 is 8.
GCF(1912,1920) = 8
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1912
2 | 1912 |
2 | 956 |
2 | 478 |
239 | 239 |
1 |
Prime factors of 1912 are 2,239. Prime factorization of 1912 in exponential form is:
1912 = 23×2391
Prime Factorization of 1920
2 | 1920 |
2 | 960 |
2 | 480 |
2 | 240 |
2 | 120 |
2 | 60 |
2 | 30 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 1920 are 2,3,5. Prime factorization of 1920 in exponential form is:
1920 = 27×31×51
∴ So by taking common prime factors GCF of 1912 and 1920 is 8
Factors of 1912
List of positive integer factors of 1912 that divides 1912 without a remainder.
1,2,4,8,239,478,956,1912
Factors of 1920
List of positive integer factors of 1920 that divides 1920 without a remainder.
1,2,3,4,5,6,8,10,12,15,16,20,24,30,32,40,48,60,64,80,96,120,128,160,192,240,320,384,480,640,960,1920
Greatest Common Factor
We found the factors and prime factorization of 1912 and 1920. The biggest common factor number is the GCF number.
So the greatest common factor 1912 and 1920 is 8.
Also check out the Least Common Multiple of 1912 and 1920
(i) The GCF of 1912 and 1920 is associative
GCF of 1912 and 1920 = GCF of 1920 and 1912
1. What is the GCF of 1912 and 1920?
Answer: GCF of 1912 and 1920 is 8.
2. What are the Factors of 1912?
Answer: Factors of 1912 are 1, 2, 4, 8, 239, 478, 956, 1912. There are 8 integers that are factors of 1912. The greatest factor of 1912 is 1912.
3. What are the Factors of 1920?
Answer: Factors of 1920 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920. There are 32 integers that are factors of 1920. The greatest factor of 1920 is 1920.
4. How to Find the GCF of 1912 and 1920?
Answer:
Greatest Common Factor of 1912 and 1920 = 8
Step 1: Find the prime factorization of 1912
1912 = 2 x 2 x 2 x 239
Step 2: Find the prime factorization of 1920
1920 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 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 1912 and 1920 is 8