GCD of 121, 642, 242 Calculator

Given Input numbers are 121, 642, 242

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

Divisors of 121

List of positive integer divisors of 121 that divides 121 without a remainder.

1, 11, 121

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 242

List of positive integer divisors of 242 that divides 242 without a remainder.

1, 2, 11, 22, 121, 242

Greatest Common Divisior

We found the divisors of 121, 642, 242 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 121, 642, 242 is 1.

Therefore, GCD of numbers 121, 642, 242 is 1

Given Input Data is 121, 642, 242

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

Prime Factorization of 121 is 11 x 11

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 242 is 2 x 11 x 11

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(121, 642) = 77682

GCD(121, 642) = ( 121 x 642 ) / 77682

GCD(121, 642) = 77682 / 77682

GCD(121, 642) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 242

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

LCM(1, 242) = 242

GCD(1, 242) = ( 1 x 242 ) / 242

GCD(1, 242) = 242 / 242

GCD(1, 242) = 1

GCD of 121, 642, 242 is 1

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1. What is the GCD of 121, 642, 242?

GCD of 121, 642, 242 is 1

2. Where do I get the detailed procedure to find GCD of 121, 642, 242?

You can find a detailed procedure to find GCD of 121, 642, 242 on our page.

3. How to find GCD of 121, 642, 242 on a calculator?

You can find the GCD of 121, 642, 242 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.