GCD of 187, 421, 457, 655 Calculator

Given Input numbers are 187, 421, 457, 655

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

Divisors of 187

List of positive integer divisors of 187 that divides 187 without a remainder.

1, 11, 17, 187

Divisors of 421

List of positive integer divisors of 421 that divides 421 without a remainder.

1, 421

Divisors of 457

List of positive integer divisors of 457 that divides 457 without a remainder.

1, 457

Divisors of 655

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

1, 5, 131, 655

Greatest Common Divisior

We found the divisors of 187, 421, 457, 655 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 187, 421, 457, 655 is 1.

Therefore, GCD of numbers 187, 421, 457, 655 is 1

Given Input Data is 187, 421, 457, 655

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

Prime Factorization of 187 is 11 x 17

Prime Factorization of 421 is 421

Prime Factorization of 457 is 457

Prime Factorization of 655 is 5 x 131

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(187, 421) = 78727

GCD(187, 421) = ( 187 x 421 ) / 78727

GCD(187, 421) = 78727 / 78727

GCD(187, 421) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 457

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

LCM(1, 457) = 457

GCD(1, 457) = ( 1 x 457 ) / 457

GCD(1, 457) = 457 / 457

GCD(1, 457) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 655

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

LCM(1, 655) = 655

GCD(1, 655) = ( 1 x 655 ) / 655

GCD(1, 655) = 655 / 655

GCD(1, 655) = 1

GCD of 187, 421, 457, 655 is 1

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1. What is the GCD of 187, 421, 457, 655?

GCD of 187, 421, 457, 655 is 1

2. Where do I get the detailed procedure to find GCD of 187, 421, 457, 655?

You can find a detailed procedure to find GCD of 187, 421, 457, 655 on our page.

3. How to find GCD of 187, 421, 457, 655 on a calculator?

You can find the GCD of 187, 421, 457, 655 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.