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 915, 917 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 915 and 917 is 1.
GCF(915,917) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 915
3 | 915 |
5 | 305 |
61 | 61 |
1 |
Prime factors of 915 are 3,5,61. Prime factorization of 915 in exponential form is:
915 = 31×51×611
Prime Factorization of 917
7 | 917 |
131 | 131 |
1 |
Prime factors of 917 are 7,131. Prime factorization of 917 in exponential form is:
917 = 71×1311
∴ So by taking common prime factors GCF of 915 and 917 is 1
Factors of 915
List of positive integer factors of 915 that divides 915 without a remainder.
1,3,5,15,61,183,305,915
Factors of 917
List of positive integer factors of 917 that divides 917 without a remainder.
1,7,131,917
Greatest Common Factor
We found the factors and prime factorization of 915 and 917. The biggest common factor number is the GCF number.
So the greatest common factor 915 and 917 is 1.
Also check out the Least Common Multiple of 915 and 917
(i) The GCF of 915 and 917 is associative
GCF of 915 and 917 = GCF of 917 and 915
1. What is the GCF of 915 and 917?
Answer: GCF of 915 and 917 is 1.
2. What are the Factors of 915?
Answer: Factors of 915 are 1, 3, 5, 15, 61, 183, 305, 915. There are 8 integers that are factors of 915. The greatest factor of 915 is 915.
3. What are the Factors of 917?
Answer: Factors of 917 are 1, 7, 131, 917. There are 4 integers that are factors of 917. The greatest factor of 917 is 917.
4. How to Find the GCF of 915 and 917?
Answer:
Greatest Common Factor of 915 and 917 = 1
Step 1: Find the prime factorization of 915
915 = 3 x 5 x 61
Step 2: Find the prime factorization of 917
917 = 7 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 915 and 917 is 1