GCD of 861, 806, 685 Calculator

Given Input numbers are 861, 806, 685

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

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 806

List of positive integer divisors of 806 that divides 806 without a remainder.

1, 2, 13, 26, 31, 62, 403, 806

Divisors of 685

List of positive integer divisors of 685 that divides 685 without a remainder.

1, 5, 137, 685

Greatest Common Divisior

We found the divisors of 861, 806, 685 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 861, 806, 685 is 1.

Therefore, GCD of numbers 861, 806, 685 is 1

Given Input Data is 861, 806, 685

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

Prime Factorization of 861 is 3 x 7 x 41

Prime Factorization of 806 is 2 x 13 x 31

Prime Factorization of 685 is 5 x 137

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(861, 806) = 693966

GCD(861, 806) = ( 861 x 806 ) / 693966

GCD(861, 806) = 693966 / 693966

GCD(861, 806) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 685

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

LCM(1, 685) = 685

GCD(1, 685) = ( 1 x 685 ) / 685

GCD(1, 685) = 685 / 685

GCD(1, 685) = 1

GCD of 861, 806, 685 is 1

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1. What is the GCD of 861, 806, 685?

GCD of 861, 806, 685 is 1

2. Where do I get the detailed procedure to find GCD of 861, 806, 685?

You can find a detailed procedure to find GCD of 861, 806, 685 on our page.

3. How to find GCD of 861, 806, 685 on a calculator?

You can find the GCD of 861, 806, 685 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.