GCD of 818, 117, 905, 646 Calculator

Given Input numbers are 818, 117, 905, 646

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

Divisors of 818

List of positive integer divisors of 818 that divides 818 without a remainder.

1, 2, 409, 818

Divisors of 117

List of positive integer divisors of 117 that divides 117 without a remainder.

1, 3, 9, 13, 39, 117

Divisors of 905

List of positive integer divisors of 905 that divides 905 without a remainder.

1, 5, 181, 905

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

1, 2, 17, 19, 34, 38, 323, 646

Greatest Common Divisior

We found the divisors of 818, 117, 905, 646 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 818, 117, 905, 646 is 1.

Therefore, GCD of numbers 818, 117, 905, 646 is 1

Given Input Data is 818, 117, 905, 646

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

Prime Factorization of 818 is 2 x 409

Prime Factorization of 117 is 3 x 3 x 13

Prime Factorization of 905 is 5 x 181

Prime Factorization of 646 is 2 x 17 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(818, 117) = 95706

GCD(818, 117) = ( 818 x 117 ) / 95706

GCD(818, 117) = 95706 / 95706

GCD(818, 117) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 905

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

LCM(1, 905) = 905

GCD(1, 905) = ( 1 x 905 ) / 905

GCD(1, 905) = 905 / 905

GCD(1, 905) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 646

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

LCM(1, 646) = 646

GCD(1, 646) = ( 1 x 646 ) / 646

GCD(1, 646) = 646 / 646

GCD(1, 646) = 1

GCD of 818, 117, 905, 646 is 1

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1. What is the GCD of 818, 117, 905, 646?

GCD of 818, 117, 905, 646 is 1

2. Where do I get the detailed procedure to find GCD of 818, 117, 905, 646?

You can find a detailed procedure to find GCD of 818, 117, 905, 646 on our page.

3. How to find GCD of 818, 117, 905, 646 on a calculator?

You can find the GCD of 818, 117, 905, 646 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.