GCD of 642, 511, 353, 129 Calculator

Given Input numbers are 642, 511, 353, 129

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

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 511

List of positive integer divisors of 511 that divides 511 without a remainder.

1, 7, 73, 511

Divisors of 353

List of positive integer divisors of 353 that divides 353 without a remainder.

1, 353

Divisors of 129

List of positive integer divisors of 129 that divides 129 without a remainder.

1, 3, 43, 129

Greatest Common Divisior

We found the divisors of 642, 511, 353, 129 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 511, 353, 129 is 1.

Therefore, GCD of numbers 642, 511, 353, 129 is 1

Given Input Data is 642, 511, 353, 129

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

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 511 is 7 x 73

Prime Factorization of 353 is 353

Prime Factorization of 129 is 3 x 43

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(642, 511) = 328062

GCD(642, 511) = ( 642 x 511 ) / 328062

GCD(642, 511) = 328062 / 328062

GCD(642, 511) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 353

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

LCM(1, 353) = 353

GCD(1, 353) = ( 1 x 353 ) / 353

GCD(1, 353) = 353 / 353

GCD(1, 353) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 129

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

LCM(1, 129) = 129

GCD(1, 129) = ( 1 x 129 ) / 129

GCD(1, 129) = 129 / 129

GCD(1, 129) = 1

GCD of 642, 511, 353, 129 is 1

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• GCD of 297, 560, 507, 858
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1. What is the GCD of 642, 511, 353, 129?

GCD of 642, 511, 353, 129 is 1

2. Where do I get the detailed procedure to find GCD of 642, 511, 353, 129?

You can find a detailed procedure to find GCD of 642, 511, 353, 129 on our page.

3. How to find GCD of 642, 511, 353, 129 on a calculator?

You can find the GCD of 642, 511, 353, 129 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.