GCD of 115, 779, 642 Calculator

Given Input numbers are 115, 779, 642

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

Divisors of 115

List of positive integer divisors of 115 that divides 115 without a remainder.

1, 5, 23, 115

Divisors of 779

List of positive integer divisors of 779 that divides 779 without a remainder.

1, 19, 41, 779

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Greatest Common Divisior

We found the divisors of 115, 779, 642 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 115, 779, 642 is 1.

Therefore, GCD of numbers 115, 779, 642 is 1

Given Input Data is 115, 779, 642

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

Prime Factorization of 115 is 5 x 23

Prime Factorization of 779 is 19 x 41

Prime Factorization of 642 is 2 x 3 x 107

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(115, 779) = 89585

GCD(115, 779) = ( 115 x 779 ) / 89585

GCD(115, 779) = 89585 / 89585

GCD(115, 779) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 642

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

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

GCD(1, 642) = 642 / 642

GCD(1, 642) = 1

GCD of 115, 779, 642 is 1

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1. What is the GCD of 115, 779, 642?

GCD of 115, 779, 642 is 1

2. Where do I get the detailed procedure to find GCD of 115, 779, 642?

You can find a detailed procedure to find GCD of 115, 779, 642 on our page.

3. How to find GCD of 115, 779, 642 on a calculator?

You can find the GCD of 115, 779, 642 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.