GCD of 956, 638, 81, 771 Calculator

Given Input numbers are 956, 638, 81, 771

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

Divisors of 956

List of positive integer divisors of 956 that divides 956 without a remainder.

1, 2, 4, 239, 478, 956

Divisors of 638

List of positive integer divisors of 638 that divides 638 without a remainder.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 771

List of positive integer divisors of 771 that divides 771 without a remainder.

1, 3, 257, 771

Greatest Common Divisior

We found the divisors of 956, 638, 81, 771 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 956, 638, 81, 771 is 1.

Therefore, GCD of numbers 956, 638, 81, 771 is 1

Given Input Data is 956, 638, 81, 771

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

Prime Factorization of 956 is 2 x 2 x 239

Prime Factorization of 638 is 2 x 11 x 29

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 771 is 3 x 257

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(956, 638) = 304964

GCD(956, 638) = ( 956 x 638 ) / 304964

GCD(956, 638) = 609928 / 304964

GCD(956, 638) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 81

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

LCM(2, 81) = 162

GCD(2, 81) = ( 2 x 81 ) / 162

GCD(2, 81) = 162 / 162

GCD(2, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 771

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

LCM(1, 771) = 771

GCD(1, 771) = ( 1 x 771 ) / 771

GCD(1, 771) = 771 / 771

GCD(1, 771) = 1

GCD of 956, 638, 81, 771 is 1

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1. What is the GCD of 956, 638, 81, 771?

GCD of 956, 638, 81, 771 is 1

2. Where do I get the detailed procedure to find GCD of 956, 638, 81, 771?

You can find a detailed procedure to find GCD of 956, 638, 81, 771 on our page.

3. How to find GCD of 956, 638, 81, 771 on a calculator?

You can find the GCD of 956, 638, 81, 771 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.