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 261, 264 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 261 and 264 is 3.
GCF(261,264) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 261
3 | 261 |
3 | 87 |
29 | 29 |
1 |
Prime factors of 261 are 3,29. Prime factorization of 261 in exponential form is:
261 = 32×291
Prime Factorization of 264
2 | 264 |
2 | 132 |
2 | 66 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 264 are 2,3,11. Prime factorization of 264 in exponential form is:
264 = 23×31×111
∴ So by taking common prime factors GCF of 261 and 264 is 3
Factors of 261
List of positive integer factors of 261 that divides 261 without a remainder.
1,3,9,29,87,261
Factors of 264
List of positive integer factors of 264 that divides 264 without a remainder.
1,2,3,4,6,8,11,12,22,24,33,44,66,88,132,264
Greatest Common Factor
We found the factors and prime factorization of 261 and 264. The biggest common factor number is the GCF number.
So the greatest common factor 261 and 264 is 3.
Also check out the Least Common Multiple of 261 and 264
(i) The GCF of 261 and 264 is associative
GCF of 261 and 264 = GCF of 264 and 261
1. What is the GCF of 261 and 264?
Answer: GCF of 261 and 264 is 3.
2. What are the Factors of 261?
Answer: Factors of 261 are 1, 3, 9, 29, 87, 261. There are 6 integers that are factors of 261. The greatest factor of 261 is 261.
3. What are the Factors of 264?
Answer: Factors of 264 are 1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 264. There are 16 integers that are factors of 264. The greatest factor of 264 is 264.
4. How to Find the GCF of 261 and 264?
Answer:
Greatest Common Factor of 261 and 264 = 3
Step 1: Find the prime factorization of 261
261 = 3 x 3 x 29
Step 2: Find the prime factorization of 264
264 = 2 x 2 x 2 x 3 x 11
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 261 and 264 is 3