GCD of 810, 786, 81, 220 Calculator

Given Input numbers are 810, 786, 81, 220

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

Divisors of 810

List of positive integer divisors of 810 that divides 810 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810

Divisors of 786

List of positive integer divisors of 786 that divides 786 without a remainder.

1, 2, 3, 6, 131, 262, 393, 786

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 220

List of positive integer divisors of 220 that divides 220 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

Greatest Common Divisior

We found the divisors of 810, 786, 81, 220 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 810, 786, 81, 220 is 1.

Therefore, GCD of numbers 810, 786, 81, 220 is 1

Given Input Data is 810, 786, 81, 220

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

Prime Factorization of 810 is 2 x 3 x 3 x 3 x 3 x 5

Prime Factorization of 786 is 2 x 3 x 131

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 220 is 2 x 2 x 5 x 11

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(810, 786) = 106110

GCD(810, 786) = ( 810 x 786 ) / 106110

GCD(810, 786) = 636660 / 106110

GCD(810, 786) = 6

Step2:

Here we consider the GCD from the above i.e. 6 as first number and the next as 81

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

LCM(6, 81) = 162

GCD(6, 81) = ( 6 x 81 ) / 162

GCD(6, 81) = 486 / 162

GCD(6, 81) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 220

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

LCM(3, 220) = 660

GCD(3, 220) = ( 3 x 220 ) / 660

GCD(3, 220) = 660 / 660

GCD(3, 220) = 1

GCD of 810, 786, 81, 220 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 458, 138, 20, 129
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• GCD of 366, 650, 80, 531

1. What is the GCD of 810, 786, 81, 220?

GCD of 810, 786, 81, 220 is 1

2. Where do I get the detailed procedure to find GCD of 810, 786, 81, 220?

You can find a detailed procedure to find GCD of 810, 786, 81, 220 on our page.

3. How to find GCD of 810, 786, 81, 220 on a calculator?

You can find the GCD of 810, 786, 81, 220 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.