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 1911, 1915 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1911 and 1915 is 1.
GCF(1911,1915) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1911
3 | 1911 |
7 | 637 |
7 | 91 |
13 | 13 |
1 |
Prime factors of 1911 are 3,7,13. Prime factorization of 1911 in exponential form is:
1911 = 31×72×131
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 1911 and 1915 is 1
Factors of 1911
List of positive integer factors of 1911 that divides 1911 without a remainder.
1,3,7,13,21,39,49,91,147,273,637,1911
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 1911 and 1915. The biggest common factor number is the GCF number.
So the greatest common factor 1911 and 1915 is 1.
Also check out the Least Common Multiple of 1911 and 1915
(i) The GCF of 1911 and 1915 is associative
GCF of 1911 and 1915 = GCF of 1915 and 1911
1. What is the GCF of 1911 and 1915?
Answer: GCF of 1911 and 1915 is 1.
2. What are the Factors of 1911?
Answer: Factors of 1911 are 1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911. There are 12 integers that are factors of 1911. The greatest factor of 1911 is 1911.
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 1911 and 1915?
Answer:
Greatest Common Factor of 1911 and 1915 = 1
Step 1: Find the prime factorization of 1911
1911 = 3 x 7 x 7 x 13
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 1911 and 1915 is 1