GCD of 679, 636, 642 Calculator

Given Input numbers are 679, 636, 642

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

Divisors of 679

List of positive integer divisors of 679 that divides 679 without a remainder.

1, 7, 97, 679

Divisors of 636

List of positive integer divisors of 636 that divides 636 without a remainder.

1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636

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 679, 636, 642 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 679, 636, 642 is 1.

Therefore, GCD of numbers 679, 636, 642 is 1

Given Input Data is 679, 636, 642

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

Prime Factorization of 679 is 7 x 97

Prime Factorization of 636 is 2 x 2 x 3 x 53

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(679, 636) = 431844

GCD(679, 636) = ( 679 x 636 ) / 431844

GCD(679, 636) = 431844 / 431844

GCD(679, 636) = 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 679, 636, 642 is 1

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1. What is the GCD of 679, 636, 642?

GCD of 679, 636, 642 is 1

2. Where do I get the detailed procedure to find GCD of 679, 636, 642?

You can find a detailed procedure to find GCD of 679, 636, 642 on our page.

3. How to find GCD of 679, 636, 642 on a calculator?

You can find the GCD of 679, 636, 642 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.