GCD of 655, 471, 618, 388 Calculator

Given Input numbers are 655, 471, 618, 388

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 471

List of positive integer divisors of 471 that divides 471 without a remainder.

1, 3, 157, 471

Divisors of 618

List of positive integer divisors of 618 that divides 618 without a remainder.

1, 2, 3, 6, 103, 206, 309, 618

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

Greatest Common Divisior

We found the divisors of 655, 471, 618, 388 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 655, 471, 618, 388 is 1.

Therefore, GCD of numbers 655, 471, 618, 388 is 1

Given Input Data is 655, 471, 618, 388

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

Prime Factorization of 655 is 5 x 131

Prime Factorization of 471 is 3 x 157

Prime Factorization of 618 is 2 x 3 x 103

Prime Factorization of 388 is 2 x 2 x 97

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, 471) = 308505

GCD(655, 471) = ( 655 x 471 ) / 308505

GCD(655, 471) = 308505 / 308505

GCD(655, 471) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 618

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

LCM(1, 618) = 618

GCD(1, 618) = ( 1 x 618 ) / 618

GCD(1, 618) = 618 / 618

GCD(1, 618) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 388

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

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

GCD(1, 388) = 388 / 388

GCD(1, 388) = 1

GCD of 655, 471, 618, 388 is 1

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1. What is the GCD of 655, 471, 618, 388?

GCD of 655, 471, 618, 388 is 1

2. Where do I get the detailed procedure to find GCD of 655, 471, 618, 388?

You can find a detailed procedure to find GCD of 655, 471, 618, 388 on our page.

3. How to find GCD of 655, 471, 618, 388 on a calculator?

You can find the GCD of 655, 471, 618, 388 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.