GCD of 655, 729, 261, 121 Calculator

Given Input numbers are 655, 729, 261, 121

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

Divisors of 655

List of positive integer divisors of 655 that divides 655 without a remainder.

1, 5, 131, 655

Divisors of 729

List of positive integer divisors of 729 that divides 729 without a remainder.

1, 3, 9, 27, 81, 243, 729

Divisors of 261

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

1, 3, 9, 29, 87, 261

Divisors of 121

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

1, 11, 121

Greatest Common Divisior

We found the divisors of 655, 729, 261, 121 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 655, 729, 261, 121 is 1.

Therefore, GCD of numbers 655, 729, 261, 121 is 1

Given Input Data is 655, 729, 261, 121

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

Prime Factorization of 655 is 5 x 131

Prime Factorization of 729 is 3 x 3 x 3 x 3 x 3 x 3

Prime Factorization of 261 is 3 x 3 x 29

Prime Factorization of 121 is 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(655, 729) = 477495

GCD(655, 729) = ( 655 x 729 ) / 477495

GCD(655, 729) = 477495 / 477495

GCD(655, 729) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 261

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

LCM(1, 261) = 261

GCD(1, 261) = ( 1 x 261 ) / 261

GCD(1, 261) = 261 / 261

GCD(1, 261) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 121

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

LCM(1, 121) = 121

GCD(1, 121) = ( 1 x 121 ) / 121

GCD(1, 121) = 121 / 121

GCD(1, 121) = 1

GCD of 655, 729, 261, 121 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 283, 627, 534, 118
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• GCD of 337, 417, 562, 593

1. What is the GCD of 655, 729, 261, 121?

GCD of 655, 729, 261, 121 is 1

2. Where do I get the detailed procedure to find GCD of 655, 729, 261, 121?

You can find a detailed procedure to find GCD of 655, 729, 261, 121 on our page.

3. How to find GCD of 655, 729, 261, 121 on a calculator?

You can find the GCD of 655, 729, 261, 121 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.