Greatest Common Factor of 858 and 865

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 858, 865 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 858 and 865 is 1.

GCF(858,865) = 1

GCF of 858 and 865

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

GCF of:
and

Greatest Common Factor of 858 and 865

GCF of 858 and 865 is 1

Prime Factorization of 858


2 858
3 429
11 143
13 13
1

Prime factors of 858 are 2,3,11,13. Prime factorization of 858 in exponential form is:

858 = 21×31×111×131

Prime Factorization of 865


5 865
173 173
1

Prime factors of 865 are 5,173. Prime factorization of 865 in exponential form is:

865 = 51×1731

∴ So by taking common prime factors GCF of 858 and 865 is 1

Greatest Common Factor of 858 and 865 by matching factors method

Factors of 858

List of positive integer factors of 858 that divides 858 without a remainder.

1,2,3,6,11,13,22,26,33,39,66,78,143,286,429,858

Factors of 865

List of positive integer factors of 865 that divides 865 without a remainder.

1,5,173,865

Greatest Common Factor

We found the factors and prime factorization of 858 and 865. The biggest common factor number is the GCF number.
So the greatest common factor 858 and 865 is 1.

Also check out the Least Common Multiple of 858 and 865

Properties of GCF 858 and 865

(i) The GCF of 858 and 865 is associative

GCF of 858 and 865 = GCF of 865 and 858

Related Greatest Common Factor of 858

Related Greatest Common Factor of 865

Frequently Asked Questions on GCF of 858 and 865

1. What is the GCF of 858 and 865?

Answer: GCF of 858 and 865 is 1.

2. What are the Factors of 858?

Answer: Factors of 858 are 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858. There are 16 integers that are factors of 858. The greatest factor of 858 is 858.

3. What are the Factors of 865?

Answer: Factors of 865 are 1, 5, 173, 865. There are 4 integers that are factors of 865. The greatest factor of 865 is 865.

4. How to Find the GCF of 858 and 865?

Answer:

Greatest Common Factor of 858 and 865 = 1

Step 1: Find the prime factorization of 858

858 = 2 x 3 x 11 x 13

Step 2: Find the prime factorization of 865

865 = 5 x 173

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 858 and 865 is 1