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, 1915 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1909 and 1915 is 1.
GCF(1909,1915) = 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 1915
5 | 1915 |
383 | 383 |
1 |
Prime factors of 1915 are 5,383. Prime factorization of 1915 in exponential form is:
1915 = 51×3831
∴ So by taking common prime factors GCF of 1909 and 1915 is 1
Factors of 1909
List of positive integer factors of 1909 that divides 1909 without a remainder.
1,23,83,1909
Factors of 1915
List of positive integer factors of 1915 that divides 1915 without a remainder.
1,5,383,1915
Greatest Common Factor
We found the factors and prime factorization of 1909 and 1915. The biggest common factor number is the GCF number.
So the greatest common factor 1909 and 1915 is 1.
Also check out the Least Common Multiple of 1909 and 1915
(i) The GCF of 1909 and 1915 is associative
GCF of 1909 and 1915 = GCF of 1915 and 1909
1. What is the GCF of 1909 and 1915?
Answer: GCF of 1909 and 1915 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 1915?
Answer: Factors of 1915 are 1, 5, 383, 1915. There are 4 integers that are factors of 1915. The greatest factor of 1915 is 1915.
4. How to Find the GCF of 1909 and 1915?
Answer:
Greatest Common Factor of 1909 and 1915 = 1
Step 1: Find the prime factorization of 1909
1909 = 23 x 83
Step 2: Find the prime factorization of 1915
1915 = 5 x 383
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 1915 is 1