GCD of 195, 243, 20, 801 Calculator

Given Input numbers are 195, 243, 20, 801

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

Divisors of 195

List of positive integer divisors of 195 that divides 195 without a remainder.

1, 3, 5, 13, 15, 39, 65, 195

Divisors of 243

List of positive integer divisors of 243 that divides 243 without a remainder.

1, 3, 9, 27, 81, 243

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 801

List of positive integer divisors of 801 that divides 801 without a remainder.

1, 3, 9, 89, 267, 801

Greatest Common Divisior

We found the divisors of 195, 243, 20, 801 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 195, 243, 20, 801 is 1.

Therefore, GCD of numbers 195, 243, 20, 801 is 1

Given Input Data is 195, 243, 20, 801

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

Prime Factorization of 195 is 3 x 5 x 13

Prime Factorization of 243 is 3 x 3 x 3 x 3 x 3

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 801 is 3 x 3 x 89

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(195, 243) = 15795

GCD(195, 243) = ( 195 x 243 ) / 15795

GCD(195, 243) = 47385 / 15795

GCD(195, 243) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 20

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

LCM(3, 20) = 60

GCD(3, 20) = ( 3 x 20 ) / 60

GCD(3, 20) = 60 / 60

GCD(3, 20) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 801

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

LCM(1, 801) = 801

GCD(1, 801) = ( 1 x 801 ) / 801

GCD(1, 801) = 801 / 801

GCD(1, 801) = 1

GCD of 195, 243, 20, 801 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 334, 909, 88, 851
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• GCD of 678, 368, 68, 563
• GCD of 981, 598, 49, 878
• GCD of 645, 797, 52, 432

1. What is the GCD of 195, 243, 20, 801?

GCD of 195, 243, 20, 801 is 1

2. Where do I get the detailed procedure to find GCD of 195, 243, 20, 801?

You can find a detailed procedure to find GCD of 195, 243, 20, 801 on our page.

3. How to find GCD of 195, 243, 20, 801 on a calculator?

You can find the GCD of 195, 243, 20, 801 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.