GCD of 978, 221, 191 Calculator

Given Input numbers are 978, 221, 191

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 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Divisors of 191

List of positive integer divisors of 191 that divides 191 without a remainder.

1, 191

Greatest Common Divisior

We found the divisors of 978, 221, 191 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 978, 221, 191 is 1.

Therefore, GCD of numbers 978, 221, 191 is 1

Given Input Data is 978, 221, 191

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 221 is 13 x 17

Prime Factorization of 191 is 191

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, 221) = 216138

GCD(978, 221) = ( 978 x 221 ) / 216138

GCD(978, 221) = 216138 / 216138

GCD(978, 221) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 191

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

LCM(1, 191) = 191

GCD(1, 191) = ( 1 x 191 ) / 191

GCD(1, 191) = 191 / 191

GCD(1, 191) = 1

GCD of 978, 221, 191 is 1

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1. What is the GCD of 978, 221, 191?

GCD of 978, 221, 191 is 1

2. Where do I get the detailed procedure to find GCD of 978, 221, 191?

You can find a detailed procedure to find GCD of 978, 221, 191 on our page.

3. How to find GCD of 978, 221, 191 on a calculator?

You can find the GCD of 978, 221, 191 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.