GCD of 78, 571, 182, 642 Calculator

Given Input numbers are 78, 571, 182, 642

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

Divisors of 78

List of positive integer divisors of 78 that divides 78 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78

Divisors of 571

List of positive integer divisors of 571 that divides 571 without a remainder.

1, 571

Divisors of 182

List of positive integer divisors of 182 that divides 182 without a remainder.

1, 2, 7, 13, 14, 26, 91, 182

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 78, 571, 182, 642 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 78, 571, 182, 642 is 1.

Therefore, GCD of numbers 78, 571, 182, 642 is 1

Given Input Data is 78, 571, 182, 642

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

Prime Factorization of 78 is 2 x 3 x 13

Prime Factorization of 571 is 571

Prime Factorization of 182 is 2 x 7 x 13

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(78, 571) = 44538

GCD(78, 571) = ( 78 x 571 ) / 44538

GCD(78, 571) = 44538 / 44538

GCD(78, 571) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 182

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

LCM(1, 182) = 182

GCD(1, 182) = ( 1 x 182 ) / 182

GCD(1, 182) = 182 / 182

GCD(1, 182) = 1

Step3:

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 78, 571, 182, 642 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 50, 965, 723, 133
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• GCD of 69, 216, 860, 577

1. What is the GCD of 78, 571, 182, 642?

GCD of 78, 571, 182, 642 is 1

2. Where do I get the detailed procedure to find GCD of 78, 571, 182, 642?

You can find a detailed procedure to find GCD of 78, 571, 182, 642 on our page.

3. How to find GCD of 78, 571, 182, 642 on a calculator?

You can find the GCD of 78, 571, 182, 642 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.