GCD of 646, 194, 438 Calculator

Given Input numbers are 646, 194, 438

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

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 194

List of positive integer divisors of 194 that divides 194 without a remainder.

1, 2, 97, 194

Divisors of 438

List of positive integer divisors of 438 that divides 438 without a remainder.

1, 2, 3, 6, 73, 146, 219, 438

Greatest Common Divisior

We found the divisors of 646, 194, 438 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 646, 194, 438 is 2.

Therefore, GCD of numbers 646, 194, 438 is 2

Given Input Data is 646, 194, 438

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

Prime Factorization of 646 is 2 x 17 x 19

Prime Factorization of 194 is 2 x 97

Prime Factorization of 438 is 2 x 3 x 73

Highest common occurrences in the given inputs are 2¹

Multiplying them we get the GCD as 2

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(646, 194) = 62662

GCD(646, 194) = ( 646 x 194 ) / 62662

GCD(646, 194) = 125324 / 62662

GCD(646, 194) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 438

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

LCM(2, 438) = 438

GCD(2, 438) = ( 2 x 438 ) / 438

GCD(2, 438) = 876 / 438

GCD(2, 438) = 2

GCD of 646, 194, 438 is 2

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1. What is the GCD of 646, 194, 438?

GCD of 646, 194, 438 is 2

2. Where do I get the detailed procedure to find GCD of 646, 194, 438?

You can find a detailed procedure to find GCD of 646, 194, 438 on our page.

3. How to find GCD of 646, 194, 438 on a calculator?

You can find the GCD of 646, 194, 438 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.