GCD of 807, 203, 789, 861 Calculator

Given Input numbers are 807, 203, 789, 861

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

Divisors of 807

List of positive integer divisors of 807 that divides 807 without a remainder.

1, 3, 269, 807

Divisors of 203

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

1, 7, 29, 203

Divisors of 789

List of positive integer divisors of 789 that divides 789 without a remainder.

1, 3, 263, 789

Divisors of 861

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

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

Greatest Common Divisior

We found the divisors of 807, 203, 789, 861 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 807, 203, 789, 861 is 1.

Therefore, GCD of numbers 807, 203, 789, 861 is 1

Given Input Data is 807, 203, 789, 861

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

Prime Factorization of 807 is 3 x 269

Prime Factorization of 203 is 7 x 29

Prime Factorization of 789 is 3 x 263

Prime Factorization of 861 is 3 x 7 x 41

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(807, 203) = 163821

GCD(807, 203) = ( 807 x 203 ) / 163821

GCD(807, 203) = 163821 / 163821

GCD(807, 203) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 789

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

LCM(1, 789) = 789

GCD(1, 789) = ( 1 x 789 ) / 789

GCD(1, 789) = 789 / 789

GCD(1, 789) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 861

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

LCM(1, 861) = 861

GCD(1, 861) = ( 1 x 861 ) / 861

GCD(1, 861) = 861 / 861

GCD(1, 861) = 1

GCD of 807, 203, 789, 861 is 1

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1. What is the GCD of 807, 203, 789, 861?

GCD of 807, 203, 789, 861 is 1

2. Where do I get the detailed procedure to find GCD of 807, 203, 789, 861?

You can find a detailed procedure to find GCD of 807, 203, 789, 861 on our page.

3. How to find GCD of 807, 203, 789, 861 on a calculator?

You can find the GCD of 807, 203, 789, 861 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.