GCD of 381, 970, 861 Calculator

Given Input numbers are 381, 970, 861

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

Divisors of 381

List of positive integer divisors of 381 that divides 381 without a remainder.

1, 3, 127, 381

Divisors of 970

List of positive integer divisors of 970 that divides 970 without a remainder.

1, 2, 5, 10, 97, 194, 485, 970

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 381, 970, 861 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 381, 970, 861 is 1.

Therefore, GCD of numbers 381, 970, 861 is 1

Given Input Data is 381, 970, 861

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

Prime Factorization of 381 is 3 x 127

Prime Factorization of 970 is 2 x 5 x 97

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(381, 970) = 369570

GCD(381, 970) = ( 381 x 970 ) / 369570

GCD(381, 970) = 369570 / 369570

GCD(381, 970) = 1

Step2:

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 381, 970, 861 is 1

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1. What is the GCD of 381, 970, 861?

GCD of 381, 970, 861 is 1

2. Where do I get the detailed procedure to find GCD of 381, 970, 861?

You can find a detailed procedure to find GCD of 381, 970, 861 on our page.

3. How to find GCD of 381, 970, 861 on a calculator?

You can find the GCD of 381, 970, 861 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.