GCD of 261, 349, 97, 642 Calculator

Given Input numbers are 261, 349, 97, 642

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

Divisors of 261

List of positive integer divisors of 261 that divides 261 without a remainder.

1, 3, 9, 29, 87, 261

Divisors of 349

List of positive integer divisors of 349 that divides 349 without a remainder.

1, 349

Divisors of 97

List of positive integer divisors of 97 that divides 97 without a remainder.

1, 97

Divisors of 642

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

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

Greatest Common Divisior

We found the divisors of 261, 349, 97, 642 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 261, 349, 97, 642 is 1.

Therefore, GCD of numbers 261, 349, 97, 642 is 1

Given Input Data is 261, 349, 97, 642

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

Prime Factorization of 261 is 3 x 3 x 29

Prime Factorization of 349 is 349

Prime Factorization of 97 is 97

Prime Factorization of 642 is 2 x 3 x 107

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(261, 349) = 91089

GCD(261, 349) = ( 261 x 349 ) / 91089

GCD(261, 349) = 91089 / 91089

GCD(261, 349) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 97

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

LCM(1, 97) = 97

GCD(1, 97) = ( 1 x 97 ) / 97

GCD(1, 97) = 97 / 97

GCD(1, 97) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 642

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

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

GCD(1, 642) = 642 / 642

GCD(1, 642) = 1

GCD of 261, 349, 97, 642 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 911, 322, 35, 682
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• GCD of 883, 739, 53, 385

1. What is the GCD of 261, 349, 97, 642?

GCD of 261, 349, 97, 642 is 1

2. Where do I get the detailed procedure to find GCD of 261, 349, 97, 642?

You can find a detailed procedure to find GCD of 261, 349, 97, 642 on our page.

3. How to find GCD of 261, 349, 97, 642 on a calculator?

You can find the GCD of 261, 349, 97, 642 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.