GCD of 978, 921, 487, 968 Calculator

Given Input numbers are 978, 921, 487, 968

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

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 921

List of positive integer divisors of 921 that divides 921 without a remainder.

1, 3, 307, 921

Divisors of 487

List of positive integer divisors of 487 that divides 487 without a remainder.

1, 487

Divisors of 968

List of positive integer divisors of 968 that divides 968 without a remainder.

1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968

Greatest Common Divisior

We found the divisors of 978, 921, 487, 968 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 978, 921, 487, 968 is 1.

Therefore, GCD of numbers 978, 921, 487, 968 is 1

Given Input Data is 978, 921, 487, 968

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

Prime Factorization of 978 is 2 x 3 x 163

Prime Factorization of 921 is 3 x 307

Prime Factorization of 487 is 487

Prime Factorization of 968 is 2 x 2 x 2 x 11 x 11

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(978, 921) = 300246

GCD(978, 921) = ( 978 x 921 ) / 300246

GCD(978, 921) = 900738 / 300246

GCD(978, 921) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 487

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

LCM(3, 487) = 1461

GCD(3, 487) = ( 3 x 487 ) / 1461

GCD(3, 487) = 1461 / 1461

GCD(3, 487) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 968

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

LCM(1, 968) = 968

GCD(1, 968) = ( 1 x 968 ) / 968

GCD(1, 968) = 968 / 968

GCD(1, 968) = 1

GCD of 978, 921, 487, 968 is 1

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1. What is the GCD of 978, 921, 487, 968?

GCD of 978, 921, 487, 968 is 1

2. Where do I get the detailed procedure to find GCD of 978, 921, 487, 968?

You can find a detailed procedure to find GCD of 978, 921, 487, 968 on our page.

3. How to find GCD of 978, 921, 487, 968 on a calculator?

You can find the GCD of 978, 921, 487, 968 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.