Greatest Common Factor of 56 and 57

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 56, 57 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 56 and 57 is 1.

GCF(56,57) = 1

GCF of 56 and 57

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

GCF of:
and

Greatest Common Factor of 56 and 57

GCF of 56 and 57 is 1

Prime Factorization of 56


2 56
2 28
2 14
7 7
1

Prime factors of 56 are 2,7. Prime factorization of 56 in exponential form is:

56 = 23×71

Prime Factorization of 57


3 57
19 19
1

Prime factors of 57 are 3,19. Prime factorization of 57 in exponential form is:

57 = 31×191

∴ So by taking common prime factors GCF of 56 and 57 is 1

Greatest Common Factor of 56 and 57 by matching factors method

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Greatest Common Factor

We found the factors and prime factorization of 56 and 57. The biggest common factor number is the GCF number.
So the greatest common factor 56 and 57 is 1.

Also check out the Least Common Multiple of 56 and 57

Properties of GCF 56 and 57

(i) The GCF of 56 and 57 is associative

GCF of 56 and 57 = GCF of 57 and 56

Related Greatest Common Factor of 56

Related Greatest Common Factor of 57

Frequently Asked Questions on GCF of 56 and 57

1. What is the GCF of 56 and 57?

Answer: GCF of 56 and 57 is 1.

2. What are the Factors of 56?

Answer: Factors of 56 are 1, 2, 4, 7, 8, 14, 28, 56. There are 8 integers that are factors of 56. The greatest factor of 56 is 56.

3. What are the Factors of 57?

Answer: Factors of 57 are 1, 3, 19, 57. There are 4 integers that are factors of 57. The greatest factor of 57 is 57.

4. How to Find the GCF of 56 and 57?

Answer:

Greatest Common Factor of 56 and 57 = 1

Step 1: Find the prime factorization of 56

56 = 2 x 2 x 2 x 7

Step 2: Find the prime factorization of 57

57 = 3 x 19

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 56 and 57 is 1