Greatest Common Factor of 813 and 815

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 813, 815 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 813 and 815 is 1.

GCF(813,815) = 1

GCF of 813 and 815

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

GCF of:
and

Greatest Common Factor of 813 and 815

GCF of 813 and 815 is 1

Prime Factorization of 813


3 813
271 271
1

Prime factors of 813 are 3,271. Prime factorization of 813 in exponential form is:

813 = 31×2711

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

∴ So by taking common prime factors GCF of 813 and 815 is 1

Greatest Common Factor of 813 and 815 by matching factors method

Factors of 813

List of positive integer factors of 813 that divides 813 without a remainder.

1,3,271,813

Factors of 815

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

1,5,163,815

Greatest Common Factor

We found the factors and prime factorization of 813 and 815. The biggest common factor number is the GCF number.
So the greatest common factor 813 and 815 is 1.

Also check out the Least Common Multiple of 813 and 815

Properties of GCF 813 and 815

(i) The GCF of 813 and 815 is associative

GCF of 813 and 815 = GCF of 815 and 813

Related Greatest Common Factor of 813

Related Greatest Common Factor of 815

Frequently Asked Questions on GCF of 813 and 815

1. What is the GCF of 813 and 815?

Answer: GCF of 813 and 815 is 1.

2. What are the Factors of 813?

Answer: Factors of 813 are 1, 3, 271, 813. There are 4 integers that are factors of 813. The greatest factor of 813 is 813.

3. 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.

4. How to Find the GCF of 813 and 815?

Answer:

Greatest Common Factor of 813 and 815 = 1

Step 1: Find the prime factorization of 813

813 = 3 x 271

Step 2: Find the prime factorization of 815

815 = 5 x 163

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 813 and 815 is 1