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 1917, 1923 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1917 and 1923 is 3.
GCF(1917,1923) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1917
3 | 1917 |
3 | 639 |
3 | 213 |
71 | 71 |
1 |
Prime factors of 1917 are 3,71. Prime factorization of 1917 in exponential form is:
1917 = 33×711
Prime Factorization of 1923
3 | 1923 |
641 | 641 |
1 |
Prime factors of 1923 are 3,641. Prime factorization of 1923 in exponential form is:
1923 = 31×6411
∴ So by taking common prime factors GCF of 1917 and 1923 is 3
Factors of 1917
List of positive integer factors of 1917 that divides 1917 without a remainder.
1,3,9,27,71,213,639,1917
Factors of 1923
List of positive integer factors of 1923 that divides 1923 without a remainder.
1,3,641,1923
Greatest Common Factor
We found the factors and prime factorization of 1917 and 1923. The biggest common factor number is the GCF number.
So the greatest common factor 1917 and 1923 is 3.
Also check out the Least Common Multiple of 1917 and 1923
(i) The GCF of 1917 and 1923 is associative
GCF of 1917 and 1923 = GCF of 1923 and 1917
1. What is the GCF of 1917 and 1923?
Answer: GCF of 1917 and 1923 is 3.
2. What are the Factors of 1917?
Answer: Factors of 1917 are 1, 3, 9, 27, 71, 213, 639, 1917. There are 8 integers that are factors of 1917. The greatest factor of 1917 is 1917.
3. What are the Factors of 1923?
Answer: Factors of 1923 are 1, 3, 641, 1923. There are 4 integers that are factors of 1923. The greatest factor of 1923 is 1923.
4. How to Find the GCF of 1917 and 1923?
Answer:
Greatest Common Factor of 1917 and 1923 = 3
Step 1: Find the prime factorization of 1917
1917 = 3 x 3 x 3 x 71
Step 2: Find the prime factorization of 1923
1923 = 3 x 641
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 1917 and 1923 is 3