Greatest Common Factor of 851 and 856

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 851, 856 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 851 and 856 is 1.

GCF(851,856) = 1

GCF of 851 and 856

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

GCF of:
and

Greatest Common Factor of 851 and 856

GCF of 851 and 856 is 1

Prime Factorization of 851


23 851
37 37
1

Prime factors of 851 are 23,37. Prime factorization of 851 in exponential form is:

851 = 231×371

Prime Factorization of 856


2 856
2 428
2 214
107 107
1

Prime factors of 856 are 2,107. Prime factorization of 856 in exponential form is:

856 = 23×1071

∴ So by taking common prime factors GCF of 851 and 856 is 1

Greatest Common Factor of 851 and 856 by matching factors method

Factors of 851

List of positive integer factors of 851 that divides 851 without a remainder.

1,23,37,851

Factors of 856

List of positive integer factors of 856 that divides 856 without a remainder.

1,2,4,8,107,214,428,856

Greatest Common Factor

We found the factors and prime factorization of 851 and 856. The biggest common factor number is the GCF number.
So the greatest common factor 851 and 856 is 1.

Also check out the Least Common Multiple of 851 and 856

Properties of GCF 851 and 856

(i) The GCF of 851 and 856 is associative

GCF of 851 and 856 = GCF of 856 and 851

Related Greatest Common Factor of 851

Related Greatest Common Factor of 856

Frequently Asked Questions on GCF of 851 and 856

1. What is the GCF of 851 and 856?

Answer: GCF of 851 and 856 is 1.

2. What are the Factors of 851?

Answer: Factors of 851 are 1, 23, 37, 851. There are 4 integers that are factors of 851. The greatest factor of 851 is 851.

3. What are the Factors of 856?

Answer: Factors of 856 are 1, 2, 4, 8, 107, 214, 428, 856. There are 8 integers that are factors of 856. The greatest factor of 856 is 856.

4. How to Find the GCF of 851 and 856?

Answer:

Greatest Common Factor of 851 and 856 = 1

Step 1: Find the prime factorization of 851

851 = 23 x 37

Step 2: Find the prime factorization of 856

856 = 2 x 2 x 2 x 107

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 851 and 856 is 1