GCD of 191, 917, 452, 780 Calculator

Given Input numbers are 191, 917, 452, 780

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

Divisors of 191

List of positive integer divisors of 191 that divides 191 without a remainder.

1, 191

Divisors of 917

List of positive integer divisors of 917 that divides 917 without a remainder.

1, 7, 131, 917

Divisors of 452

List of positive integer divisors of 452 that divides 452 without a remainder.

1, 2, 4, 113, 226, 452

Divisors of 780

List of positive integer divisors of 780 that divides 780 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Greatest Common Divisior

We found the divisors of 191, 917, 452, 780 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 191, 917, 452, 780 is 1.

Therefore, GCD of numbers 191, 917, 452, 780 is 1

Given Input Data is 191, 917, 452, 780

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

Prime Factorization of 191 is 191

Prime Factorization of 917 is 7 x 131

Prime Factorization of 452 is 2 x 2 x 113

Prime Factorization of 780 is 2 x 2 x 3 x 5 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(191, 917) = 175147

GCD(191, 917) = ( 191 x 917 ) / 175147

GCD(191, 917) = 175147 / 175147

GCD(191, 917) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 452

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

LCM(1, 452) = 452

GCD(1, 452) = ( 1 x 452 ) / 452

GCD(1, 452) = 452 / 452

GCD(1, 452) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 780

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

LCM(1, 780) = 780

GCD(1, 780) = ( 1 x 780 ) / 780

GCD(1, 780) = 780 / 780

GCD(1, 780) = 1

GCD of 191, 917, 452, 780 is 1

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1. What is the GCD of 191, 917, 452, 780?

GCD of 191, 917, 452, 780 is 1

2. Where do I get the detailed procedure to find GCD of 191, 917, 452, 780?

You can find a detailed procedure to find GCD of 191, 917, 452, 780 on our page.

3. How to find GCD of 191, 917, 452, 780 on a calculator?

You can find the GCD of 191, 917, 452, 780 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.