Greatest Common Factor of 815 and 817

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 815, 817 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 815 and 817 is 1.

GCF(815,817) = 1

GCF of 815 and 817

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

GCF of:
and

Greatest Common Factor of 815 and 817

GCF of 815 and 817 is 1

Prime Factorization of 815


5 815
163 163
1

Prime factors of 815 are 5,163. Prime factorization of 815 in exponential form is:

815 = 51×1631

Prime Factorization of 817


19 817
43 43
1

Prime factors of 817 are 19,43. Prime factorization of 817 in exponential form is:

817 = 191×431

∴ So by taking common prime factors GCF of 815 and 817 is 1

Greatest Common Factor of 815 and 817 by matching factors method

Factors of 815

List of positive integer factors of 815 that divides 815 without a remainder.

1,5,163,815

Factors of 817

List of positive integer factors of 817 that divides 817 without a remainder.

1,19,43,817

Greatest Common Factor

We found the factors and prime factorization of 815 and 817. The biggest common factor number is the GCF number.
So the greatest common factor 815 and 817 is 1.

Also check out the Least Common Multiple of 815 and 817

Properties of GCF 815 and 817

(i) The GCF of 815 and 817 is associative

GCF of 815 and 817 = GCF of 817 and 815

Related Greatest Common Factor of 815

Related Greatest Common Factor of 817

Frequently Asked Questions on GCF of 815 and 817

1. What is the GCF of 815 and 817?

Answer: GCF of 815 and 817 is 1.

2. What are the Factors of 815?

Answer: Factors of 815 are 1, 5, 163, 815. There are 4 integers that are factors of 815. The greatest factor of 815 is 815.

3. What are the Factors of 817?

Answer: Factors of 817 are 1, 19, 43, 817. There are 4 integers that are factors of 817. The greatest factor of 817 is 817.

4. How to Find the GCF of 815 and 817?

Answer:

Greatest Common Factor of 815 and 817 = 1

Step 1: Find the prime factorization of 815

815 = 5 x 163

Step 2: Find the prime factorization of 817

817 = 19 x 43

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 815 and 817 is 1