GCD of 291, 189, 865 Calculator

Given Input numbers are 291, 189, 865

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

Divisors of 291

List of positive integer divisors of 291 that divides 291 without a remainder.

1, 3, 97, 291

Divisors of 189

List of positive integer divisors of 189 that divides 189 without a remainder.

1, 3, 7, 9, 21, 27, 63, 189

Divisors of 865

List of positive integer divisors of 865 that divides 865 without a remainder.

1, 5, 173, 865

Greatest Common Divisior

We found the divisors of 291, 189, 865 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 291, 189, 865 is 1.

Therefore, GCD of numbers 291, 189, 865 is 1

Given Input Data is 291, 189, 865

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

Prime Factorization of 291 is 3 x 97

Prime Factorization of 189 is 3 x 3 x 3 x 7

Prime Factorization of 865 is 5 x 173

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(291, 189) = 18333

GCD(291, 189) = ( 291 x 189 ) / 18333

GCD(291, 189) = 54999 / 18333

GCD(291, 189) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 865

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

LCM(3, 865) = 2595

GCD(3, 865) = ( 3 x 865 ) / 2595

GCD(3, 865) = 2595 / 2595

GCD(3, 865) = 1

GCD of 291, 189, 865 is 1

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1. What is the GCD of 291, 189, 865?

GCD of 291, 189, 865 is 1

2. Where do I get the detailed procedure to find GCD of 291, 189, 865?

You can find a detailed procedure to find GCD of 291, 189, 865 on our page.

3. How to find GCD of 291, 189, 865 on a calculator?

You can find the GCD of 291, 189, 865 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.