GCD of 18, 203, 681, 641 Calculator

Given Input numbers are 18, 203, 681, 641

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

Divisors of 18

List of positive integer divisors of 18 that divides 18 without a remainder.

1, 2, 3, 6, 9, 18

Divisors of 203

List of positive integer divisors of 203 that divides 203 without a remainder.

1, 7, 29, 203

Divisors of 681

List of positive integer divisors of 681 that divides 681 without a remainder.

1, 3, 227, 681

Divisors of 641

List of positive integer divisors of 641 that divides 641 without a remainder.

1, 641

Greatest Common Divisior

We found the divisors of 18, 203, 681, 641 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 18, 203, 681, 641 is 1.

Therefore, GCD of numbers 18, 203, 681, 641 is 1

Given Input Data is 18, 203, 681, 641

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

Prime Factorization of 18 is 2 x 3 x 3

Prime Factorization of 203 is 7 x 29

Prime Factorization of 681 is 3 x 227

Prime Factorization of 641 is 641

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(18, 203) = 3654

GCD(18, 203) = ( 18 x 203 ) / 3654

GCD(18, 203) = 3654 / 3654

GCD(18, 203) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 681

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

LCM(1, 681) = 681

GCD(1, 681) = ( 1 x 681 ) / 681

GCD(1, 681) = 681 / 681

GCD(1, 681) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 641

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

LCM(1, 641) = 641

GCD(1, 641) = ( 1 x 641 ) / 641

GCD(1, 641) = 641 / 641

GCD(1, 641) = 1

GCD of 18, 203, 681, 641 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 52, 684, 679, 192
• GCD of 84, 390, 527, 916
• GCD of 98, 563, 150, 878
• GCD of 27, 116, 835, 513
• GCD of 87, 324, 170, 273

1. What is the GCD of 18, 203, 681, 641?

GCD of 18, 203, 681, 641 is 1

2. Where do I get the detailed procedure to find GCD of 18, 203, 681, 641?

You can find a detailed procedure to find GCD of 18, 203, 681, 641 on our page.

3. How to find GCD of 18, 203, 681, 641 on a calculator?

You can find the GCD of 18, 203, 681, 641 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.