Greatest Common Factor of 57 and 61

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 57, 61 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 57 and 61 is 1.

GCF(57,61) = 1

GCF of 57 and 61

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

GCF of:
and

Greatest Common Factor of 57 and 61

GCF of 57 and 61 is 1

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

Prime Factorization of 61


61 61
1

Prime factors of 61 are 61. Prime factorization of 61 in exponential form is:

61 = 611

∴ So by taking common prime factors GCF of 57 and 61 is 1

Greatest Common Factor of 57 and 61 by matching factors method

Factors of 57

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

1,3,19,57

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Greatest Common Factor

We found the factors and prime factorization of 57 and 61. The biggest common factor number is the GCF number.
So the greatest common factor 57 and 61 is 1.

Also check out the Least Common Multiple of 57 and 61

Properties of GCF 57 and 61

(i) The GCF of 57 and 61 is associative

GCF of 57 and 61 = GCF of 61 and 57

Related Greatest Common Factor of 57

Related Greatest Common Factor of 61

Frequently Asked Questions on GCF of 57 and 61

1. What is the GCF of 57 and 61?

Answer: GCF of 57 and 61 is 1.

2. 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.

3. What are the Factors of 61?

Answer: Factors of 61 are 1, 61. There are 2 integers that are factors of 61. The greatest factor of 61 is 61.

4. How to Find the GCF of 57 and 61?

Answer:

Greatest Common Factor of 57 and 61 = 1

Step 1: Find the prime factorization of 57

57 = 3 x 19

Step 2: Find the prime factorization of 61

61 = 61

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 57 and 61 is 1