GCD of 81, 617, 912, 991 Calculator

Given Input numbers are 81, 617, 912, 991

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 617

List of positive integer divisors of 617 that divides 617 without a remainder.

1, 617

Divisors of 912

List of positive integer divisors of 912 that divides 912 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912

Divisors of 991

List of positive integer divisors of 991 that divides 991 without a remainder.

1, 991

Greatest Common Divisior

We found the divisors of 81, 617, 912, 991 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 81, 617, 912, 991 is 1.

Therefore, GCD of numbers 81, 617, 912, 991 is 1

Given Input Data is 81, 617, 912, 991

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 617 is 617

Prime Factorization of 912 is 2 x 2 x 2 x 2 x 3 x 19

Prime Factorization of 991 is 991

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, 617) = 49977

GCD(81, 617) = ( 81 x 617 ) / 49977

GCD(81, 617) = 49977 / 49977

GCD(81, 617) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 912

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

LCM(1, 912) = 912

GCD(1, 912) = ( 1 x 912 ) / 912

GCD(1, 912) = 912 / 912

GCD(1, 912) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 991

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

LCM(1, 991) = 991

GCD(1, 991) = ( 1 x 991 ) / 991

GCD(1, 991) = 991 / 991

GCD(1, 991) = 1

GCD of 81, 617, 912, 991 is 1

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1. What is the GCD of 81, 617, 912, 991?

GCD of 81, 617, 912, 991 is 1

2. Where do I get the detailed procedure to find GCD of 81, 617, 912, 991?

You can find a detailed procedure to find GCD of 81, 617, 912, 991 on our page.

3. How to find GCD of 81, 617, 912, 991 on a calculator?

You can find the GCD of 81, 617, 912, 991 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.