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, 262 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 255 and 262 is 1.
GCF(255,262) = 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 262
2 | 262 |
131 | 131 |
1 |
Prime factors of 262 are 2,131. Prime factorization of 262 in exponential form is:
262 = 21×1311
∴ So by taking common prime factors GCF of 255 and 262 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 262
List of positive integer factors of 262 that divides 262 without a remainder.
1,2,131,262
Greatest Common Factor
We found the factors and prime factorization of 255 and 262. The biggest common factor number is the GCF number.
So the greatest common factor 255 and 262 is 1.
Also check out the Least Common Multiple of 255 and 262
(i) The GCF of 255 and 262 is associative
GCF of 255 and 262 = GCF of 262 and 255
1. What is the GCF of 255 and 262?
Answer: GCF of 255 and 262 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 262?
Answer: Factors of 262 are 1, 2, 131, 262. There are 4 integers that are factors of 262. The greatest factor of 262 is 262.
4. How to Find the GCF of 255 and 262?
Answer:
Greatest Common Factor of 255 and 262 = 1
Step 1: Find the prime factorization of 255
255 = 3 x 5 x 17
Step 2: Find the prime factorization of 262
262 = 2 x 131
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 262 is 1