GCD of 821, 978, 618 Calculator

Given Input numbers are 821, 978, 618

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

Divisors of 821

List of positive integer divisors of 821 that divides 821 without a remainder.

1, 821

Divisors of 978

List of positive integer divisors of 978 that divides 978 without a remainder.

1, 2, 3, 6, 163, 326, 489, 978

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 821, 978, 618 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 821, 978, 618 is 1.

Therefore, GCD of numbers 821, 978, 618 is 1

Given Input Data is 821, 978, 618

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

Prime Factorization of 821 is 821

Prime Factorization of 978 is 2 x 3 x 163

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(821, 978) = 802938

GCD(821, 978) = ( 821 x 978 ) / 802938

GCD(821, 978) = 802938 / 802938

GCD(821, 978) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 618

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

LCM(1, 618) = 618

GCD(1, 618) = ( 1 x 618 ) / 618

GCD(1, 618) = 618 / 618

GCD(1, 618) = 1

GCD of 821, 978, 618 is 1

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1. What is the GCD of 821, 978, 618?

GCD of 821, 978, 618 is 1

2. Where do I get the detailed procedure to find GCD of 821, 978, 618?

You can find a detailed procedure to find GCD of 821, 978, 618 on our page.

3. How to find GCD of 821, 978, 618 on a calculator?

You can find the GCD of 821, 978, 618 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.