GCD of 988, 813, 669, 398 Calculator

Given Input numbers are 988, 813, 669, 398

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

Divisors of 988

List of positive integer divisors of 988 that divides 988 without a remainder.

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988

Divisors of 813

List of positive integer divisors of 813 that divides 813 without a remainder.

1, 3, 271, 813

Divisors of 669

List of positive integer divisors of 669 that divides 669 without a remainder.

1, 3, 223, 669

Divisors of 398

List of positive integer divisors of 398 that divides 398 without a remainder.

1, 2, 199, 398

Greatest Common Divisior

We found the divisors of 988, 813, 669, 398 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 988, 813, 669, 398 is 1.

Therefore, GCD of numbers 988, 813, 669, 398 is 1

Given Input Data is 988, 813, 669, 398

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

Prime Factorization of 988 is 2 x 2 x 13 x 19

Prime Factorization of 813 is 3 x 271

Prime Factorization of 669 is 3 x 223

Prime Factorization of 398 is 2 x 199

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(988, 813) = 803244

GCD(988, 813) = ( 988 x 813 ) / 803244

GCD(988, 813) = 803244 / 803244

GCD(988, 813) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 669

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

LCM(1, 669) = 669

GCD(1, 669) = ( 1 x 669 ) / 669

GCD(1, 669) = 669 / 669

GCD(1, 669) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 398

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

LCM(1, 398) = 398

GCD(1, 398) = ( 1 x 398 ) / 398

GCD(1, 398) = 398 / 398

GCD(1, 398) = 1

GCD of 988, 813, 669, 398 is 1

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• GCD of 960, 910, 800, 195
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1. What is the GCD of 988, 813, 669, 398?

GCD of 988, 813, 669, 398 is 1

2. Where do I get the detailed procedure to find GCD of 988, 813, 669, 398?

You can find a detailed procedure to find GCD of 988, 813, 669, 398 on our page.

3. How to find GCD of 988, 813, 669, 398 on a calculator?

You can find the GCD of 988, 813, 669, 398 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.