GCD of 637, 203, 81, 778 Calculator

Given Input numbers are 637, 203, 81, 778

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

Divisors of 637

List of positive integer divisors of 637 that divides 637 without a remainder.

1, 7, 13, 49, 91, 637

Divisors of 203

List of positive integer divisors of 203 that divides 203 without a remainder.

1, 7, 29, 203

Divisors of 81

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

1, 3, 9, 27, 81

Divisors of 778

List of positive integer divisors of 778 that divides 778 without a remainder.

1, 2, 389, 778

Greatest Common Divisior

We found the divisors of 637, 203, 81, 778 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 637, 203, 81, 778 is 1.

Therefore, GCD of numbers 637, 203, 81, 778 is 1

Given Input Data is 637, 203, 81, 778

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

Prime Factorization of 637 is 7 x 7 x 13

Prime Factorization of 203 is 7 x 29

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

Prime Factorization of 778 is 2 x 389

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(637, 203) = 18473

GCD(637, 203) = ( 637 x 203 ) / 18473

GCD(637, 203) = 129311 / 18473

GCD(637, 203) = 7

Step2:

Here we consider the GCD from the above i.e. 7 as first number and the next as 81

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

LCM(7, 81) = 567

GCD(7, 81) = ( 7 x 81 ) / 567

GCD(7, 81) = 567 / 567

GCD(7, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 778

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

LCM(1, 778) = 778

GCD(1, 778) = ( 1 x 778 ) / 778

GCD(1, 778) = 778 / 778

GCD(1, 778) = 1

GCD of 637, 203, 81, 778 is 1

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• GCD of 440, 151, 48, 338
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1. What is the GCD of 637, 203, 81, 778?

GCD of 637, 203, 81, 778 is 1

2. Where do I get the detailed procedure to find GCD of 637, 203, 81, 778?

You can find a detailed procedure to find GCD of 637, 203, 81, 778 on our page.

3. How to find GCD of 637, 203, 81, 778 on a calculator?

You can find the GCD of 637, 203, 81, 778 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.