GCD of 70, 791, 389, 819 Calculator

Given Input numbers are 70, 791, 389, 819

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

Divisors of 70

List of positive integer divisors of 70 that divides 70 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70

Divisors of 791

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

1, 7, 113, 791

Divisors of 389

List of positive integer divisors of 389 that divides 389 without a remainder.

1, 389

Divisors of 819

List of positive integer divisors of 819 that divides 819 without a remainder.

1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819

Greatest Common Divisior

We found the divisors of 70, 791, 389, 819 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 70, 791, 389, 819 is 1.

Therefore, GCD of numbers 70, 791, 389, 819 is 1

Given Input Data is 70, 791, 389, 819

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

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 791 is 7 x 113

Prime Factorization of 389 is 389

Prime Factorization of 819 is 3 x 3 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(70, 791) = 7910

GCD(70, 791) = ( 70 x 791 ) / 7910

GCD(70, 791) = 55370 / 7910

GCD(70, 791) = 7

Step2:

Here we consider the GCD from the above i.e. 7 as first number and the next as 389

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

LCM(7, 389) = 2723

GCD(7, 389) = ( 7 x 389 ) / 2723

GCD(7, 389) = 2723 / 2723

GCD(7, 389) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 819

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

LCM(1, 819) = 819

GCD(1, 819) = ( 1 x 819 ) / 819

GCD(1, 819) = 819 / 819

GCD(1, 819) = 1

GCD of 70, 791, 389, 819 is 1

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1. What is the GCD of 70, 791, 389, 819?

GCD of 70, 791, 389, 819 is 1

2. Where do I get the detailed procedure to find GCD of 70, 791, 389, 819?

You can find a detailed procedure to find GCD of 70, 791, 389, 819 on our page.

3. How to find GCD of 70, 791, 389, 819 on a calculator?

You can find the GCD of 70, 791, 389, 819 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.