GCD of 689, 328, 81, 811 Calculator

Given Input numbers are 689, 328, 81, 811

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

Divisors of 689

List of positive integer divisors of 689 that divides 689 without a remainder.

1, 13, 53, 689

Divisors of 328

List of positive integer divisors of 328 that divides 328 without a remainder.

1, 2, 4, 8, 41, 82, 164, 328

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 811

List of positive integer divisors of 811 that divides 811 without a remainder.

1, 811

Greatest Common Divisior

We found the divisors of 689, 328, 81, 811 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 689, 328, 81, 811 is 1.

Therefore, GCD of numbers 689, 328, 81, 811 is 1

Given Input Data is 689, 328, 81, 811

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

Prime Factorization of 689 is 13 x 53

Prime Factorization of 328 is 2 x 2 x 2 x 41

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 811 is 811

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(689, 328) = 225992

GCD(689, 328) = ( 689 x 328 ) / 225992

GCD(689, 328) = 225992 / 225992

GCD(689, 328) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 81

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

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

GCD(1, 81) = 81 / 81

GCD(1, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 811

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

LCM(1, 811) = 811

GCD(1, 811) = ( 1 x 811 ) / 811

GCD(1, 811) = 811 / 811

GCD(1, 811) = 1

GCD of 689, 328, 81, 811 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 771, 857, 53, 360
• GCD of 711, 796, 88, 366
• GCD of 918, 446, 48, 891
• GCD of 832, 536, 83, 710
• GCD of 300, 126, 23, 869

1. What is the GCD of 689, 328, 81, 811?

GCD of 689, 328, 81, 811 is 1

2. Where do I get the detailed procedure to find GCD of 689, 328, 81, 811?

You can find a detailed procedure to find GCD of 689, 328, 81, 811 on our page.

3. How to find GCD of 689, 328, 81, 811 on a calculator?

You can find the GCD of 689, 328, 81, 811 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.