GCD of 139, 988, 28, 664 Calculator

Given Input numbers are 139, 988, 28, 664

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

Divisors of 139

List of positive integer divisors of 139 that divides 139 without a remainder.

1, 139

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 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 664

List of positive integer divisors of 664 that divides 664 without a remainder.

1, 2, 4, 8, 83, 166, 332, 664

Greatest Common Divisior

We found the divisors of 139, 988, 28, 664 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 139, 988, 28, 664 is 1.

Therefore, GCD of numbers 139, 988, 28, 664 is 1

Given Input Data is 139, 988, 28, 664

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

Prime Factorization of 139 is 139

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

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 664 is 2 x 2 x 2 x 83

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(139, 988) = 137332

GCD(139, 988) = ( 139 x 988 ) / 137332

GCD(139, 988) = 137332 / 137332

GCD(139, 988) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 28

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

LCM(1, 28) = 28

GCD(1, 28) = ( 1 x 28 ) / 28

GCD(1, 28) = 28 / 28

GCD(1, 28) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 664

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

LCM(1, 664) = 664

GCD(1, 664) = ( 1 x 664 ) / 664

GCD(1, 664) = 664 / 664

GCD(1, 664) = 1

GCD of 139, 988, 28, 664 is 1

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1. What is the GCD of 139, 988, 28, 664?

GCD of 139, 988, 28, 664 is 1

2. Where do I get the detailed procedure to find GCD of 139, 988, 28, 664?

You can find a detailed procedure to find GCD of 139, 988, 28, 664 on our page.

3. How to find GCD of 139, 988, 28, 664 on a calculator?

You can find the GCD of 139, 988, 28, 664 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.