GCD of 797, 400, 13, 620 Calculator

Given Input numbers are 797, 400, 13, 620

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

Divisors of 797

List of positive integer divisors of 797 that divides 797 without a remainder.

1, 797

Divisors of 400

List of positive integer divisors of 400 that divides 400 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400

Divisors of 13

List of positive integer divisors of 13 that divides 13 without a remainder.

1, 13

Divisors of 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Greatest Common Divisior

We found the divisors of 797, 400, 13, 620 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 797, 400, 13, 620 is 1.

Therefore, GCD of numbers 797, 400, 13, 620 is 1

Given Input Data is 797, 400, 13, 620

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

Prime Factorization of 797 is 797

Prime Factorization of 400 is 2 x 2 x 2 x 2 x 5 x 5

Prime Factorization of 13 is 13

Prime Factorization of 620 is 2 x 2 x 5 x 31

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(797, 400) = 318800

GCD(797, 400) = ( 797 x 400 ) / 318800

GCD(797, 400) = 318800 / 318800

GCD(797, 400) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 13

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

LCM(1, 13) = 13

GCD(1, 13) = ( 1 x 13 ) / 13

GCD(1, 13) = 13 / 13

GCD(1, 13) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 620

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

LCM(1, 620) = 620

GCD(1, 620) = ( 1 x 620 ) / 620

GCD(1, 620) = 620 / 620

GCD(1, 620) = 1

GCD of 797, 400, 13, 620 is 1

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• GCD of 869, 468, 84, 959
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• GCD of 715, 975, 95, 265

1. What is the GCD of 797, 400, 13, 620?

GCD of 797, 400, 13, 620 is 1

2. Where do I get the detailed procedure to find GCD of 797, 400, 13, 620?

You can find a detailed procedure to find GCD of 797, 400, 13, 620 on our page.

3. How to find GCD of 797, 400, 13, 620 on a calculator?

You can find the GCD of 797, 400, 13, 620 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.