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 865, 872 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 865 and 872 is 1.
GCF(865,872) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 865
5 | 865 |
173 | 173 |
1 |
Prime factors of 865 are 5,173. Prime factorization of 865 in exponential form is:
865 = 51×1731
Prime Factorization of 872
2 | 872 |
2 | 436 |
2 | 218 |
109 | 109 |
1 |
Prime factors of 872 are 2,109. Prime factorization of 872 in exponential form is:
872 = 23×1091
∴ So by taking common prime factors GCF of 865 and 872 is 1
Factors of 865
List of positive integer factors of 865 that divides 865 without a remainder.
1,5,173,865
Factors of 872
List of positive integer factors of 872 that divides 872 without a remainder.
1,2,4,8,109,218,436,872
Greatest Common Factor
We found the factors and prime factorization of 865 and 872. The biggest common factor number is the GCF number.
So the greatest common factor 865 and 872 is 1.
Also check out the Least Common Multiple of 865 and 872
(i) The GCF of 865 and 872 is associative
GCF of 865 and 872 = GCF of 872 and 865
1. What is the GCF of 865 and 872?
Answer: GCF of 865 and 872 is 1.
2. What are the Factors of 865?
Answer: Factors of 865 are 1, 5, 173, 865. There are 4 integers that are factors of 865. The greatest factor of 865 is 865.
3. What are the Factors of 872?
Answer: Factors of 872 are 1, 2, 4, 8, 109, 218, 436, 872. There are 8 integers that are factors of 872. The greatest factor of 872 is 872.
4. How to Find the GCF of 865 and 872?
Answer:
Greatest Common Factor of 865 and 872 = 1
Step 1: Find the prime factorization of 865
865 = 5 x 173
Step 2: Find the prime factorization of 872
872 = 2 x 2 x 2 x 109
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 865 and 872 is 1