GCD of 57, 9, 66, 49 Calculator

Given Input numbers are 57, 9, 66, 49

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

Divisors of 57

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

1, 3, 19, 57

Divisors of 9

List of positive integer divisors of 9 that divides 9 without a remainder.

1, 3, 9

Divisors of 66

List of positive integer divisors of 66 that divides 66 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66

Divisors of 49

List of positive integer divisors of 49 that divides 49 without a remainder.

1, 7, 49

Greatest Common Divisior

We found the divisors of 57, 9, 66, 49 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 57, 9, 66, 49 is 1.

Therefore, GCD of numbers 57, 9, 66, 49 is 1

Given Input Data is 57, 9, 66, 49

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

Prime Factorization of 57 is 3 x 19

Prime Factorization of 9 is 3 x 3

Prime Factorization of 66 is 2 x 3 x 11

Prime Factorization of 49 is 7 x 7

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(57, 9) = 171

GCD(57, 9) = ( 57 x 9 ) / 171

GCD(57, 9) = 513 / 171

GCD(57, 9) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 66

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

LCM(3, 66) = 66

GCD(3, 66) = ( 3 x 66 ) / 66

GCD(3, 66) = 198 / 66

GCD(3, 66) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 49

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

LCM(3, 49) = 147

GCD(3, 49) = ( 3 x 49 ) / 147

GCD(3, 49) = 147 / 147

GCD(3, 49) = 1

GCD of 57, 9, 66, 49 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 82, 2, 75, 36
• GCD of 56, 5, 31, 74
• GCD of 66, 3, 86, 35
• GCD of 78, 4, 10, 67
• GCD of 28, 2, 20, 38

1. What is the GCD of 57, 9, 66, 49?

GCD of 57, 9, 66, 49 is 1

2. Where do I get the detailed procedure to find GCD of 57, 9, 66, 49?

You can find a detailed procedure to find GCD of 57, 9, 66, 49 on our page.

3. How to find GCD of 57, 9, 66, 49 on a calculator?

You can find the GCD of 57, 9, 66, 49 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.