GCD of 680, 781, 558, 521 Calculator

Given Input numbers are 680, 781, 558, 521

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

Divisors of 680

List of positive integer divisors of 680 that divides 680 without a remainder.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

Divisors of 781

List of positive integer divisors of 781 that divides 781 without a remainder.

1, 11, 71, 781

Divisors of 558

List of positive integer divisors of 558 that divides 558 without a remainder.

1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558

Divisors of 521

List of positive integer divisors of 521 that divides 521 without a remainder.

1, 521

Greatest Common Divisior

We found the divisors of 680, 781, 558, 521 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 680, 781, 558, 521 is 1.

Therefore, GCD of numbers 680, 781, 558, 521 is 1

Given Input Data is 680, 781, 558, 521

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

Prime Factorization of 680 is 2 x 2 x 2 x 5 x 17

Prime Factorization of 781 is 11 x 71

Prime Factorization of 558 is 2 x 3 x 3 x 31

Prime Factorization of 521 is 521

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(680, 781) = 531080

GCD(680, 781) = ( 680 x 781 ) / 531080

GCD(680, 781) = 531080 / 531080

GCD(680, 781) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 558

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

LCM(1, 558) = 558

GCD(1, 558) = ( 1 x 558 ) / 558

GCD(1, 558) = 558 / 558

GCD(1, 558) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 521

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

LCM(1, 521) = 521

GCD(1, 521) = ( 1 x 521 ) / 521

GCD(1, 521) = 521 / 521

GCD(1, 521) = 1

GCD of 680, 781, 558, 521 is 1

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• GCD of 826, 675, 622, 731
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1. What is the GCD of 680, 781, 558, 521?

GCD of 680, 781, 558, 521 is 1

2. Where do I get the detailed procedure to find GCD of 680, 781, 558, 521?

You can find a detailed procedure to find GCD of 680, 781, 558, 521 on our page.

3. How to find GCD of 680, 781, 558, 521 on a calculator?

You can find the GCD of 680, 781, 558, 521 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.