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 250, 255 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 250 and 255 is 5.
GCF(250,255) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 250
2 | 250 |
5 | 125 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 250 are 2,5. Prime factorization of 250 in exponential form is:
250 = 21×53
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
∴ So by taking common prime factors GCF of 250 and 255 is 5
Factors of 250
List of positive integer factors of 250 that divides 250 without a remainder.
1,2,5,10,25,50,125,250
Factors of 255
List of positive integer factors of 255 that divides 255 without a remainder.
1,3,5,15,17,51,85,255
Greatest Common Factor
We found the factors and prime factorization of 250 and 255. The biggest common factor number is the GCF number.
So the greatest common factor 250 and 255 is 5.
Also check out the Least Common Multiple of 250 and 255
(i) The GCF of 250 and 255 is associative
GCF of 250 and 255 = GCF of 255 and 250
1. What is the GCF of 250 and 255?
Answer: GCF of 250 and 255 is 5.
2. What are the Factors of 250?
Answer: Factors of 250 are 1, 2, 5, 10, 25, 50, 125, 250. There are 8 integers that are factors of 250. The greatest factor of 250 is 250.
3. 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.
4. How to Find the GCF of 250 and 255?
Answer:
Greatest Common Factor of 250 and 255 = 5
Step 1: Find the prime factorization of 250
250 = 2 x 5 x 5 x 5
Step 2: Find the prime factorization of 255
255 = 3 x 5 x 17
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 5
Step 4: Therefore, the greatest common factor of 250 and 255 is 5