GCD of 56, 45, 68, 57 Calculator

Given Input numbers are 56, 45, 68, 57

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 56

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

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

Divisors of 45

List of positive integer divisors of 45 that divides 45 without a remainder.

1, 3, 5, 9, 15, 45

Divisors of 68

List of positive integer divisors of 68 that divides 68 without a remainder.

1, 2, 4, 17, 34, 68

Divisors of 57

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

1, 3, 19, 57

Greatest Common Divisior

We found the divisors of 56, 45, 68, 57 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 56, 45, 68, 57 is 1.

Therefore, GCD of numbers 56, 45, 68, 57 is 1

Given Input Data is 56, 45, 68, 57

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 56 is 2 x 2 x 2 x 7

Prime Factorization of 45 is 3 x 3 x 5

Prime Factorization of 68 is 2 x 2 x 17

Prime Factorization of 57 is 3 x 19

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(56, 45) = 2520

GCD(56, 45) = ( 56 x 45 ) / 2520

GCD(56, 45) = 2520 / 2520

GCD(56, 45) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 68

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 68) = 68

GCD(1, 68) = ( 1 x 68 ) / 68

GCD(1, 68) = 68 / 68

GCD(1, 68) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 57

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 57) = 57

GCD(1, 57) = ( 1 x 57 ) / 57

GCD(1, 57) = 57 / 57

GCD(1, 57) = 1

GCD of 56, 45, 68, 57 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 16, 19, 44, 51
• GCD of 99, 34, 12, 34
• GCD of 77, 89, 10, 53
• GCD of 89, 99, 36, 94
• GCD of 61, 99, 37, 53

1. What is the GCD of 56, 45, 68, 57?

GCD of 56, 45, 68, 57 is 1

2. Where do I get the detailed procedure to find GCD of 56, 45, 68, 57?

You can find a detailed procedure to find GCD of 56, 45, 68, 57 on our page.

3. How to find GCD of 56, 45, 68, 57 on a calculator?

You can find the GCD of 56, 45, 68, 57 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.