GCD of 139, 642, 81, 709 Calculator

Given Input numbers are 139, 642, 81, 709

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 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 709

List of positive integer divisors of 709 that divides 709 without a remainder.

1, 709

Greatest Common Divisior

We found the divisors of 139, 642, 81, 709 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 139, 642, 81, 709 is 1.

Therefore, GCD of numbers 139, 642, 81, 709 is 1

Given Input Data is 139, 642, 81, 709

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

Prime Factorization of 139 is 139

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 709 is 709

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, 642) = 89238

GCD(139, 642) = ( 139 x 642 ) / 89238

GCD(139, 642) = 89238 / 89238

GCD(139, 642) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 81

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

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

GCD(1, 81) = 81 / 81

GCD(1, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 709

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

LCM(1, 709) = 709

GCD(1, 709) = ( 1 x 709 ) / 709

GCD(1, 709) = 709 / 709

GCD(1, 709) = 1

GCD of 139, 642, 81, 709 is 1

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• GCD of 448, 768, 51, 913
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1. What is the GCD of 139, 642, 81, 709?

GCD of 139, 642, 81, 709 is 1

2. Where do I get the detailed procedure to find GCD of 139, 642, 81, 709?

You can find a detailed procedure to find GCD of 139, 642, 81, 709 on our page.

3. How to find GCD of 139, 642, 81, 709 on a calculator?

You can find the GCD of 139, 642, 81, 709 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.