GCD of 81, 444, 689, 424 Calculator

Given Input numbers are 81, 444, 689, 424

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

Divisors of 81

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

1, 3, 9, 27, 81

Divisors of 444

List of positive integer divisors of 444 that divides 444 without a remainder.

1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444

Divisors of 689

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

1, 13, 53, 689

Divisors of 424

List of positive integer divisors of 424 that divides 424 without a remainder.

1, 2, 4, 8, 53, 106, 212, 424

Greatest Common Divisior

We found the divisors of 81, 444, 689, 424 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 81, 444, 689, 424 is 1.

Therefore, GCD of numbers 81, 444, 689, 424 is 1

Given Input Data is 81, 444, 689, 424

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

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

Prime Factorization of 444 is 2 x 2 x 3 x 37

Prime Factorization of 689 is 13 x 53

Prime Factorization of 424 is 2 x 2 x 2 x 53

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(81, 444) = 11988

GCD(81, 444) = ( 81 x 444 ) / 11988

GCD(81, 444) = 35964 / 11988

GCD(81, 444) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 689

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

LCM(3, 689) = 2067

GCD(3, 689) = ( 3 x 689 ) / 2067

GCD(3, 689) = 2067 / 2067

GCD(3, 689) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 424

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

LCM(1, 424) = 424

GCD(1, 424) = ( 1 x 424 ) / 424

GCD(1, 424) = 424 / 424

GCD(1, 424) = 1

GCD of 81, 444, 689, 424 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 13, 930, 904, 134
• GCD of 53, 152, 414, 533
• GCD of 95, 996, 101, 317
• GCD of 58, 821, 569, 807
• GCD of 27, 155, 406, 245

1. What is the GCD of 81, 444, 689, 424?

GCD of 81, 444, 689, 424 is 1

2. Where do I get the detailed procedure to find GCD of 81, 444, 689, 424?

You can find a detailed procedure to find GCD of 81, 444, 689, 424 on our page.

3. How to find GCD of 81, 444, 689, 424 on a calculator?

You can find the GCD of 81, 444, 689, 424 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.