GCD of 810, 784, 42, 555 Calculator

Given Input numbers are 810, 784, 42, 555

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 784

List of positive integer divisors of 784 that divides 784 without a remainder.

1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784

Divisors of 42

List of positive integer divisors of 42 that divides 42 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42

Divisors of 555

List of positive integer divisors of 555 that divides 555 without a remainder.

1, 3, 5, 15, 37, 111, 185, 555

Greatest Common Divisior

We found the divisors of 810, 784, 42, 555 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 810, 784, 42, 555 is 1.

Therefore, GCD of numbers 810, 784, 42, 555 is 1

Given Input Data is 810, 784, 42, 555

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 784 is 2 x 2 x 2 x 2 x 7 x 7

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 555 is 3 x 5 x 37

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, 784) = 317520

GCD(810, 784) = ( 810 x 784 ) / 317520

GCD(810, 784) = 635040 / 317520

GCD(810, 784) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 42

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

LCM(2, 42) = 42

GCD(2, 42) = ( 2 x 42 ) / 42

GCD(2, 42) = 84 / 42

GCD(2, 42) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 555

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

LCM(2, 555) = 1110

GCD(2, 555) = ( 2 x 555 ) / 1110

GCD(2, 555) = 1110 / 1110

GCD(2, 555) = 1

GCD of 810, 784, 42, 555 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 418, 243, 10, 144
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• GCD of 134, 745, 32, 788

1. What is the GCD of 810, 784, 42, 555?

GCD of 810, 784, 42, 555 is 1

2. Where do I get the detailed procedure to find GCD of 810, 784, 42, 555?

You can find a detailed procedure to find GCD of 810, 784, 42, 555 on our page.

3. How to find GCD of 810, 784, 42, 555 on a calculator?

You can find the GCD of 810, 784, 42, 555 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.