# Greatest Common Factor of 517 and 520

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 517, 520 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 517 and 520 is 1.

GCF(517,520) = 1

## GCF of 517 and 520

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and ### GCF of 517 and 520 is 1

Prime Factorization of 517

 11 517 47 47 1

Prime factors of 517 are 11,47. Prime factorization of 517 in exponential form is:

517 = 111×471

Prime Factorization of 520

 2 520 2 260 2 130 5 65 13 13 1

Prime factors of 520 are 2,5,13. Prime factorization of 520 in exponential form is:

520 = 23×51×131

∴ So by taking common prime factors GCF of 517 and 520 is 1

### Greatest Common Factor of 517 and 520 by matching factors method

Factors of 517

List of positive integer factors of 517 that divides 517 without a remainder.

1,11,47,517

Factors of 520

List of positive integer factors of 520 that divides 520 without a remainder.

1,2,4,5,8,10,13,20,26,40,52,65,104,130,260,520

Greatest Common Factor

We found the factors and prime factorization of 517 and 520. The biggest common factor number is the GCF number.
So the greatest common factor 517 and 520 is 1.

Also check out the Least Common Multiple of 517 and 520

### Properties of GCF 517 and 520

(i) The GCF of 517 and 520 is associative

GCF of 517 and 520 = GCF of 520 and 517

### Frequently Asked Questions on GCF of 517 and 520

1. What is the GCF of 517 and 520?

Answer: GCF of 517 and 520 is 1.

2. What are the Factors of 517?

Answer: Factors of 517 are 1, 11, 47, 517. There are 4 integers that are factors of 517. The greatest factor of 517 is 517.

3. What are the Factors of 520?

Answer: Factors of 520 are 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520. There are 16 integers that are factors of 520. The greatest factor of 520 is 520.

4. How to Find the GCF of 517 and 520?

Greatest Common Factor of 517 and 520 = 1

Step 1: Find the prime factorization of 517

517 = 11 x 47

Step 2: Find the prime factorization of 520

520 = 2 x 2 x 2 x 5 x 13

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 517 and 520 is 1