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 1909, 1912 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1909 and 1912 is 1.
GCF(1909,1912) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1909
23 | 1909 |
83 | 83 |
1 |
Prime factors of 1909 are 23,83. Prime factorization of 1909 in exponential form is:
1909 = 231×831
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
∴ So by taking common prime factors GCF of 1909 and 1912 is 1
Factors of 1909
List of positive integer factors of 1909 that divides 1909 without a remainder.
1,23,83,1909
Factors of 1912
List of positive integer factors of 1912 that divides 1912 without a remainder.
1,2,4,8,239,478,956,1912
Greatest Common Factor
We found the factors and prime factorization of 1909 and 1912. The biggest common factor number is the GCF number.
So the greatest common factor 1909 and 1912 is 1.
Also check out the Least Common Multiple of 1909 and 1912
(i) The GCF of 1909 and 1912 is associative
GCF of 1909 and 1912 = GCF of 1912 and 1909
1. What is the GCF of 1909 and 1912?
Answer: GCF of 1909 and 1912 is 1.
2. What are the Factors of 1909?
Answer: Factors of 1909 are 1, 23, 83, 1909. There are 4 integers that are factors of 1909. The greatest factor of 1909 is 1909.
3. 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.
4. How to Find the GCF of 1909 and 1912?
Answer:
Greatest Common Factor of 1909 and 1912 = 1
Step 1: Find the prime factorization of 1909
1909 = 23 x 83
Step 2: Find the prime factorization of 1912
1912 = 2 x 2 x 2 x 239
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 1909 and 1912 is 1