GCD of 618, 620, 663, 424 Calculator

Given Input numbers are 618, 620, 663, 424

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

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 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Divisors of 663

List of positive integer divisors of 663 that divides 663 without a remainder.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 424

List of positive integer divisors of 424 that divides 424 without a remainder.

1, 2, 4, 8, 53, 106, 212, 424

Greatest Common Divisior

We found the divisors of 618, 620, 663, 424 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 618, 620, 663, 424 is 1.

Therefore, GCD of numbers 618, 620, 663, 424 is 1

Given Input Data is 618, 620, 663, 424

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

Prime Factorization of 618 is 2 x 3 x 103

Prime Factorization of 620 is 2 x 2 x 5 x 31

Prime Factorization of 663 is 3 x 13 x 17

Prime Factorization of 424 is 2 x 2 x 2 x 53

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(618, 620) = 191580

GCD(618, 620) = ( 618 x 620 ) / 191580

GCD(618, 620) = 383160 / 191580

GCD(618, 620) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 663

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

LCM(2, 663) = 1326

GCD(2, 663) = ( 2 x 663 ) / 1326

GCD(2, 663) = 1326 / 1326

GCD(2, 663) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 424

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

LCM(1, 424) = 424

GCD(1, 424) = ( 1 x 424 ) / 424

GCD(1, 424) = 424 / 424

GCD(1, 424) = 1

GCD of 618, 620, 663, 424 is 1

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• GCD of 179, 559, 399, 194
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1. What is the GCD of 618, 620, 663, 424?

GCD of 618, 620, 663, 424 is 1

2. Where do I get the detailed procedure to find GCD of 618, 620, 663, 424?

You can find a detailed procedure to find GCD of 618, 620, 663, 424 on our page.

3. How to find GCD of 618, 620, 663, 424 on a calculator?

You can find the GCD of 618, 620, 663, 424 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.