GCD of 485, 748, 420, 810 Calculator

Given Input numbers are 485, 748, 420, 810

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

Divisors of 485

List of positive integer divisors of 485 that divides 485 without a remainder.

1, 5, 97, 485

Divisors of 748

List of positive integer divisors of 748 that divides 748 without a remainder.

1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748

Divisors of 420

List of positive integer divisors of 420 that divides 420 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

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

Greatest Common Divisior

We found the divisors of 485, 748, 420, 810 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 485, 748, 420, 810 is 1.

Therefore, GCD of numbers 485, 748, 420, 810 is 1

Given Input Data is 485, 748, 420, 810

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

Prime Factorization of 485 is 5 x 97

Prime Factorization of 748 is 2 x 2 x 11 x 17

Prime Factorization of 420 is 2 x 2 x 3 x 5 x 7

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

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(485, 748) = 362780

GCD(485, 748) = ( 485 x 748 ) / 362780

GCD(485, 748) = 362780 / 362780

GCD(485, 748) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 420

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

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

GCD(1, 420) = 420 / 420

GCD(1, 420) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 810

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

LCM(1, 810) = 810

GCD(1, 810) = ( 1 x 810 ) / 810

GCD(1, 810) = 810 / 810

GCD(1, 810) = 1

GCD of 485, 748, 420, 810 is 1

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1. What is the GCD of 485, 748, 420, 810?

GCD of 485, 748, 420, 810 is 1

2. Where do I get the detailed procedure to find GCD of 485, 748, 420, 810?

You can find a detailed procedure to find GCD of 485, 748, 420, 810 on our page.

3. How to find GCD of 485, 748, 420, 810 on a calculator?

You can find the GCD of 485, 748, 420, 810 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.