GCD of 981, 555, 72, 728 Calculator

Given Input numbers are 981, 555, 72, 728

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

Divisors of 981

List of positive integer divisors of 981 that divides 981 without a remainder.

1, 3, 9, 109, 327, 981

Divisors of 555

List of positive integer divisors of 555 that divides 555 without a remainder.

1, 3, 5, 15, 37, 111, 185, 555

Divisors of 72

List of positive integer divisors of 72 that divides 72 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Divisors of 728

List of positive integer divisors of 728 that divides 728 without a remainder.

1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

Greatest Common Divisior

We found the divisors of 981, 555, 72, 728 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 981, 555, 72, 728 is 1.

Therefore, GCD of numbers 981, 555, 72, 728 is 1

Given Input Data is 981, 555, 72, 728

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

Prime Factorization of 981 is 3 x 3 x 109

Prime Factorization of 555 is 3 x 5 x 37

Prime Factorization of 72 is 2 x 2 x 2 x 3 x 3

Prime Factorization of 728 is 2 x 2 x 2 x 7 x 13

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(981, 555) = 181485

GCD(981, 555) = ( 981 x 555 ) / 181485

GCD(981, 555) = 544455 / 181485

GCD(981, 555) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 72

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

LCM(3, 72) = 72

GCD(3, 72) = ( 3 x 72 ) / 72

GCD(3, 72) = 216 / 72

GCD(3, 72) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 728

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

LCM(3, 728) = 2184

GCD(3, 728) = ( 3 x 728 ) / 2184

GCD(3, 728) = 2184 / 2184

GCD(3, 728) = 1

GCD of 981, 555, 72, 728 is 1

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• GCD of 423, 450, 23, 373
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• GCD of 756, 591, 91, 524

1. What is the GCD of 981, 555, 72, 728?

GCD of 981, 555, 72, 728 is 1

2. Where do I get the detailed procedure to find GCD of 981, 555, 72, 728?

You can find a detailed procedure to find GCD of 981, 555, 72, 728 on our page.

3. How to find GCD of 981, 555, 72, 728 on a calculator?

You can find the GCD of 981, 555, 72, 728 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.