GCD of 813, 678, 284, 646 Calculator

Given Input numbers are 813, 678, 284, 646

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

Divisors of 813

List of positive integer divisors of 813 that divides 813 without a remainder.

1, 3, 271, 813

Divisors of 678

List of positive integer divisors of 678 that divides 678 without a remainder.

1, 2, 3, 6, 113, 226, 339, 678

Divisors of 284

List of positive integer divisors of 284 that divides 284 without a remainder.

1, 2, 4, 71, 142, 284

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

1, 2, 17, 19, 34, 38, 323, 646

Greatest Common Divisior

We found the divisors of 813, 678, 284, 646 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 813, 678, 284, 646 is 1.

Therefore, GCD of numbers 813, 678, 284, 646 is 1

Given Input Data is 813, 678, 284, 646

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

Prime Factorization of 813 is 3 x 271

Prime Factorization of 678 is 2 x 3 x 113

Prime Factorization of 284 is 2 x 2 x 71

Prime Factorization of 646 is 2 x 17 x 19

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(813, 678) = 183738

GCD(813, 678) = ( 813 x 678 ) / 183738

GCD(813, 678) = 551214 / 183738

GCD(813, 678) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 284

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

LCM(3, 284) = 852

GCD(3, 284) = ( 3 x 284 ) / 852

GCD(3, 284) = 852 / 852

GCD(3, 284) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 646

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

LCM(1, 646) = 646

GCD(1, 646) = ( 1 x 646 ) / 646

GCD(1, 646) = 646 / 646

GCD(1, 646) = 1

GCD of 813, 678, 284, 646 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 596, 917, 891, 112
• GCD of 772, 743, 282, 182
• GCD of 363, 919, 598, 163
• GCD of 237, 678, 874, 786
• GCD of 188, 672, 418, 698

1. What is the GCD of 813, 678, 284, 646?

GCD of 813, 678, 284, 646 is 1

2. Where do I get the detailed procedure to find GCD of 813, 678, 284, 646?

You can find a detailed procedure to find GCD of 813, 678, 284, 646 on our page.

3. How to find GCD of 813, 678, 284, 646 on a calculator?

You can find the GCD of 813, 678, 284, 646 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.