GCD of 642, 212, 979 Calculator

Given Input numbers are 642, 212, 979

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

Divisors of 642

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

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

Divisors of 212

List of positive integer divisors of 212 that divides 212 without a remainder.

1, 2, 4, 53, 106, 212

Divisors of 979

List of positive integer divisors of 979 that divides 979 without a remainder.

1, 11, 89, 979

Greatest Common Divisior

We found the divisors of 642, 212, 979 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 212, 979 is 1.

Therefore, GCD of numbers 642, 212, 979 is 1

Given Input Data is 642, 212, 979

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

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 212 is 2 x 2 x 53

Prime Factorization of 979 is 11 x 89

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(642, 212) = 68052

GCD(642, 212) = ( 642 x 212 ) / 68052

GCD(642, 212) = 136104 / 68052

GCD(642, 212) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 979

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

LCM(2, 979) = 1958

GCD(2, 979) = ( 2 x 979 ) / 1958

GCD(2, 979) = 1958 / 1958

GCD(2, 979) = 1

GCD of 642, 212, 979 is 1

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1. What is the GCD of 642, 212, 979?

GCD of 642, 212, 979 is 1

2. Where do I get the detailed procedure to find GCD of 642, 212, 979?

You can find a detailed procedure to find GCD of 642, 212, 979 on our page.

3. How to find GCD of 642, 212, 979 on a calculator?

You can find the GCD of 642, 212, 979 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.