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 23, 27 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 23 and 27 is 1.
GCF(23,27) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 23
23 | 23 |
1 |
Prime factors of 23 are 23. Prime factorization of 23 in exponential form is:
23 = 231
Prime Factorization of 27
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 27 are 3.Prime factorization of 27 in exponential form is:
27 = 33
∴ So by taking common prime factors GCF of 23 and 27 is 1
Factors of 23
List of positive integer factors of 23 that divides 23 without a remainder.
1,23
Factors of 27
List of positive integer factors of 27 that divides 27 without a remainder.
1,3,9,27
Greatest Common Factor
We found the factors and prime factorization of 23 and 27. The biggest common factor number is the GCF number.
So the greatest common factor 23 and 27 is 1.
Also check out the Least Common Multiple of 23 and 27
(i) The GCF of 23 and 27 is associative
GCF of 23 and 27 = GCF of 27 and 23
1. What is the GCF of 23 and 27?
Answer: GCF of 23 and 27 is 1.
2. What are the Factors of 23?
Answer: Factors of 23 are 1, 23. There are 2 integers that are factors of 23. The greatest factor of 23 is 23.
3. What are the Factors of 27?
Answer: Factors of 27 are 1, 3, 9, 27. There are 4 integers that are factors of 27. The greatest factor of 27 is 27.
4. How to Find the GCF of 23 and 27?
Answer:
Greatest Common Factor of 23 and 27 = 1
Step 1: Find the prime factorization of 23
23 = 23
Step 2: Find the prime factorization of 27
27 = 3 x 3 x 3
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 23 and 27 is 1