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 170, 175 i.e. 5 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 170 and 175 is 5.
GCF(170,175) = 5
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 170
2 | 170 |
5 | 85 |
17 | 17 |
1 |
Prime factors of 170 are 2,5,17. Prime factorization of 170 in exponential form is:
170 = 21×51×171
Prime Factorization of 175
5 | 175 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 175 are 5,7. Prime factorization of 175 in exponential form is:
175 = 52×71
∴ So by taking common prime factors GCF of 170 and 175 is 5
Factors of 170
List of positive integer factors of 170 that divides 170 without a remainder.
1,2,5,10,17,34,85,170
Factors of 175
List of positive integer factors of 175 that divides 175 without a remainder.
1,5,7,25,35,175
Greatest Common Factor
We found the factors and prime factorization of 170 and 175. The biggest common factor number is the GCF number.
So the greatest common factor 170 and 175 is 5.
Also check out the Least Common Multiple of 170 and 175
(i) The GCF of 170 and 175 is associative
GCF of 170 and 175 = GCF of 175 and 170
1. What is the GCF of 170 and 175?
Answer: GCF of 170 and 175 is 5.
2. What are the Factors of 170?
Answer: Factors of 170 are 1, 2, 5, 10, 17, 34, 85, 170. There are 8 integers that are factors of 170. The greatest factor of 170 is 170.
3. What are the Factors of 175?
Answer: Factors of 175 are 1, 5, 7, 25, 35, 175. There are 6 integers that are factors of 175. The greatest factor of 175 is 175.
4. How to Find the GCF of 170 and 175?
Answer:
Greatest Common Factor of 170 and 175 = 5
Step 1: Find the prime factorization of 170
170 = 2 x 5 x 17
Step 2: Find the prime factorization of 175
175 = 5 x 5 x 7
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 170 and 175 is 5