GCD of 646, 686, 330, 543 Calculator

Given Input numbers are 646, 686, 330, 543

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

Divisors of 646

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

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

Divisors of 686

List of positive integer divisors of 686 that divides 686 without a remainder.

1, 2, 7, 14, 49, 98, 343, 686

Divisors of 330

List of positive integer divisors of 330 that divides 330 without a remainder.

1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330

Divisors of 543

List of positive integer divisors of 543 that divides 543 without a remainder.

1, 3, 181, 543

Greatest Common Divisior

We found the divisors of 646, 686, 330, 543 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 646, 686, 330, 543 is 1.

Therefore, GCD of numbers 646, 686, 330, 543 is 1

Given Input Data is 646, 686, 330, 543

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

Prime Factorization of 646 is 2 x 17 x 19

Prime Factorization of 686 is 2 x 7 x 7 x 7

Prime Factorization of 330 is 2 x 3 x 5 x 11

Prime Factorization of 543 is 3 x 181

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(646, 686) = 221578

GCD(646, 686) = ( 646 x 686 ) / 221578

GCD(646, 686) = 443156 / 221578

GCD(646, 686) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 330

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

LCM(2, 330) = 330

GCD(2, 330) = ( 2 x 330 ) / 330

GCD(2, 330) = 660 / 330

GCD(2, 330) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 543

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

LCM(2, 543) = 1086

GCD(2, 543) = ( 2 x 543 ) / 1086

GCD(2, 543) = 1086 / 1086

GCD(2, 543) = 1

GCD of 646, 686, 330, 543 is 1

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1. What is the GCD of 646, 686, 330, 543?

GCD of 646, 686, 330, 543 is 1

2. Where do I get the detailed procedure to find GCD of 646, 686, 330, 543?

You can find a detailed procedure to find GCD of 646, 686, 330, 543 on our page.

3. How to find GCD of 646, 686, 330, 543 on a calculator?

You can find the GCD of 646, 686, 330, 543 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.