GCD of 642, 386, 570, 159 Calculator

Given Input numbers are 642, 386, 570, 159

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 386

List of positive integer divisors of 386 that divides 386 without a remainder.

1, 2, 193, 386

Divisors of 570

List of positive integer divisors of 570 that divides 570 without a remainder.

1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570

Divisors of 159

List of positive integer divisors of 159 that divides 159 without a remainder.

1, 3, 53, 159

Greatest Common Divisior

We found the divisors of 642, 386, 570, 159 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 386, 570, 159 is 1.

Therefore, GCD of numbers 642, 386, 570, 159 is 1

Given Input Data is 642, 386, 570, 159

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 386 is 2 x 193

Prime Factorization of 570 is 2 x 3 x 5 x 19

Prime Factorization of 159 is 3 x 53

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, 386) = 123906

GCD(642, 386) = ( 642 x 386 ) / 123906

GCD(642, 386) = 247812 / 123906

GCD(642, 386) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 570

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

LCM(2, 570) = 570

GCD(2, 570) = ( 2 x 570 ) / 570

GCD(2, 570) = 1140 / 570

GCD(2, 570) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 159

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

LCM(2, 159) = 318

GCD(2, 159) = ( 2 x 159 ) / 318

GCD(2, 159) = 318 / 318

GCD(2, 159) = 1

GCD of 642, 386, 570, 159 is 1

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• GCD of 918, 952, 965, 396
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1. What is the GCD of 642, 386, 570, 159?

GCD of 642, 386, 570, 159 is 1

2. Where do I get the detailed procedure to find GCD of 642, 386, 570, 159?

You can find a detailed procedure to find GCD of 642, 386, 570, 159 on our page.

3. How to find GCD of 642, 386, 570, 159 on a calculator?

You can find the GCD of 642, 386, 570, 159 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.