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 1161, 1165 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1161 and 1165 is 1.
GCF(1161,1165) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1161
3 | 1161 |
3 | 387 |
3 | 129 |
43 | 43 |
1 |
Prime factors of 1161 are 3,43. Prime factorization of 1161 in exponential form is:
1161 = 33×431
Prime Factorization of 1165
5 | 1165 |
233 | 233 |
1 |
Prime factors of 1165 are 5,233. Prime factorization of 1165 in exponential form is:
1165 = 51×2331
∴ So by taking common prime factors GCF of 1161 and 1165 is 1
Factors of 1161
List of positive integer factors of 1161 that divides 1161 without a remainder.
1,3,9,27,43,129,387,1161
Factors of 1165
List of positive integer factors of 1165 that divides 1165 without a remainder.
1,5,233,1165
Greatest Common Factor
We found the factors and prime factorization of 1161 and 1165. The biggest common factor number is the GCF number.
So the greatest common factor 1161 and 1165 is 1.
Also check out the Least Common Multiple of 1161 and 1165
(i) The GCF of 1161 and 1165 is associative
GCF of 1161 and 1165 = GCF of 1165 and 1161
1. What is the GCF of 1161 and 1165?
Answer: GCF of 1161 and 1165 is 1.
2. What are the Factors of 1161?
Answer: Factors of 1161 are 1, 3, 9, 27, 43, 129, 387, 1161. There are 8 integers that are factors of 1161. The greatest factor of 1161 is 1161.
3. What are the Factors of 1165?
Answer: Factors of 1165 are 1, 5, 233, 1165. There are 4 integers that are factors of 1165. The greatest factor of 1165 is 1165.
4. How to Find the GCF of 1161 and 1165?
Answer:
Greatest Common Factor of 1161 and 1165 = 1
Step 1: Find the prime factorization of 1161
1161 = 3 x 3 x 3 x 43
Step 2: Find the prime factorization of 1165
1165 = 5 x 233
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 1161 and 1165 is 1