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 255, 259 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 255 and 259 is 1.
GCF(255,259) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 255
3 | 255 |
5 | 85 |
17 | 17 |
1 |
Prime factors of 255 are 3,5,17. Prime factorization of 255 in exponential form is:
255 = 31×51×171
Prime Factorization of 259
7 | 259 |
37 | 37 |
1 |
Prime factors of 259 are 7,37. Prime factorization of 259 in exponential form is:
259 = 71×371
∴ So by taking common prime factors GCF of 255 and 259 is 1
Factors of 255
List of positive integer factors of 255 that divides 255 without a remainder.
1,3,5,15,17,51,85,255
Factors of 259
List of positive integer factors of 259 that divides 259 without a remainder.
1,7,37,259
Greatest Common Factor
We found the factors and prime factorization of 255 and 259. The biggest common factor number is the GCF number.
So the greatest common factor 255 and 259 is 1.
Also check out the Least Common Multiple of 255 and 259
(i) The GCF of 255 and 259 is associative
GCF of 255 and 259 = GCF of 259 and 255
1. What is the GCF of 255 and 259?
Answer: GCF of 255 and 259 is 1.
2. What are the Factors of 255?
Answer: Factors of 255 are 1, 3, 5, 15, 17, 51, 85, 255. There are 8 integers that are factors of 255. The greatest factor of 255 is 255.
3. What are the Factors of 259?
Answer: Factors of 259 are 1, 7, 37, 259. There are 4 integers that are factors of 259. The greatest factor of 259 is 259.
4. How to Find the GCF of 255 and 259?
Answer:
Greatest Common Factor of 255 and 259 = 1
Step 1: Find the prime factorization of 255
255 = 3 x 5 x 17
Step 2: Find the prime factorization of 259
259 = 7 x 37
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 255 and 259 is 1