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 260, 261 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 260 and 261 is 1.
GCF(260,261) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 260
2 | 260 |
2 | 130 |
5 | 65 |
13 | 13 |
1 |
Prime factors of 260 are 2,5,13. Prime factorization of 260 in exponential form is:
260 = 22×51×131
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
∴ So by taking common prime factors GCF of 260 and 261 is 1
Factors of 260
List of positive integer factors of 260 that divides 260 without a remainder.
1,2,4,5,10,13,20,26,52,65,130,260
Factors of 261
List of positive integer factors of 261 that divides 261 without a remainder.
1,3,9,29,87,261
Greatest Common Factor
We found the factors and prime factorization of 260 and 261. The biggest common factor number is the GCF number.
So the greatest common factor 260 and 261 is 1.
Also check out the Least Common Multiple of 260 and 261
(i) The GCF of 260 and 261 is associative
GCF of 260 and 261 = GCF of 261 and 260
1. What is the GCF of 260 and 261?
Answer: GCF of 260 and 261 is 1.
2. What are the Factors of 260?
Answer: Factors of 260 are 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260. There are 12 integers that are factors of 260. The greatest factor of 260 is 260.
3. 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.
4. How to Find the GCF of 260 and 261?
Answer:
Greatest Common Factor of 260 and 261 = 1
Step 1: Find the prime factorization of 260
260 = 2 x 2 x 5 x 13
Step 2: Find the prime factorization of 261
261 = 3 x 3 x 29
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 260 and 261 is 1