GCD of 791, 861, 28, 618 Calculator

Given Input numbers are 791, 861, 28, 618

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

Divisors of 791

List of positive integer divisors of 791 that divides 791 without a remainder.

1, 7, 113, 791

Divisors of 861

List of positive integer divisors of 861 that divides 861 without a remainder.

1, 3, 7, 21, 41, 123, 287, 861

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 618

List of positive integer divisors of 618 that divides 618 without a remainder.

1, 2, 3, 6, 103, 206, 309, 618

Greatest Common Divisior

We found the divisors of 791, 861, 28, 618 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 791, 861, 28, 618 is 1.

Therefore, GCD of numbers 791, 861, 28, 618 is 1

Given Input Data is 791, 861, 28, 618

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

Prime Factorization of 791 is 7 x 113

Prime Factorization of 861 is 3 x 7 x 41

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 618 is 2 x 3 x 103

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(791, 861) = 97293

GCD(791, 861) = ( 791 x 861 ) / 97293

GCD(791, 861) = 681051 / 97293

GCD(791, 861) = 7

Step2:

Here we consider the GCD from the above i.e. 7 as first number and the next as 28

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

LCM(7, 28) = 28

GCD(7, 28) = ( 7 x 28 ) / 28

GCD(7, 28) = 196 / 28

GCD(7, 28) = 7

Step3:

Here we consider the GCD from the above i.e. 7 as first number and the next as 618

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

LCM(7, 618) = 4326

GCD(7, 618) = ( 7 x 618 ) / 4326

GCD(7, 618) = 4326 / 4326

GCD(7, 618) = 1

GCD of 791, 861, 28, 618 is 1

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1. What is the GCD of 791, 861, 28, 618?

GCD of 791, 861, 28, 618 is 1

2. Where do I get the detailed procedure to find GCD of 791, 861, 28, 618?

You can find a detailed procedure to find GCD of 791, 861, 28, 618 on our page.

3. How to find GCD of 791, 861, 28, 618 on a calculator?

You can find the GCD of 791, 861, 28, 618 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.