GCD of 19, 721, 816, 791 Calculator

Given Input numbers are 19, 721, 816, 791

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

Divisors of 19

List of positive integer divisors of 19 that divides 19 without a remainder.

1, 19

Divisors of 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

Divisors of 816

List of positive integer divisors of 816 that divides 816 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816

Divisors of 791

List of positive integer divisors of 791 that divides 791 without a remainder.

1, 7, 113, 791

Greatest Common Divisior

We found the divisors of 19, 721, 816, 791 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 19, 721, 816, 791 is 1.

Therefore, GCD of numbers 19, 721, 816, 791 is 1

Given Input Data is 19, 721, 816, 791

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

Prime Factorization of 19 is 19

Prime Factorization of 721 is 7 x 103

Prime Factorization of 816 is 2 x 2 x 2 x 2 x 3 x 17

Prime Factorization of 791 is 7 x 113

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(19, 721) = 13699

GCD(19, 721) = ( 19 x 721 ) / 13699

GCD(19, 721) = 13699 / 13699

GCD(19, 721) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 816

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

LCM(1, 816) = 816

GCD(1, 816) = ( 1 x 816 ) / 816

GCD(1, 816) = 816 / 816

GCD(1, 816) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 791

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

LCM(1, 791) = 791

GCD(1, 791) = ( 1 x 791 ) / 791

GCD(1, 791) = 791 / 791

GCD(1, 791) = 1

GCD of 19, 721, 816, 791 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 71, 528, 434, 574
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• GCD of 56, 478, 400, 105

1. What is the GCD of 19, 721, 816, 791?

GCD of 19, 721, 816, 791 is 1

2. Where do I get the detailed procedure to find GCD of 19, 721, 816, 791?

You can find a detailed procedure to find GCD of 19, 721, 816, 791 on our page.

3. How to find GCD of 19, 721, 816, 791 on a calculator?

You can find the GCD of 19, 721, 816, 791 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.