GCD of 639, 178, 60, 317 Calculator

Given Input numbers are 639, 178, 60, 317

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

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 178

List of positive integer divisors of 178 that divides 178 without a remainder.

1, 2, 89, 178

Divisors of 60

List of positive integer divisors of 60 that divides 60 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

Divisors of 317

List of positive integer divisors of 317 that divides 317 without a remainder.

1, 317

Greatest Common Divisior

We found the divisors of 639, 178, 60, 317 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 178, 60, 317 is 1.

Therefore, GCD of numbers 639, 178, 60, 317 is 1

Given Input Data is 639, 178, 60, 317

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

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 178 is 2 x 89

Prime Factorization of 60 is 2 x 2 x 3 x 5

Prime Factorization of 317 is 317

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(639, 178) = 113742

GCD(639, 178) = ( 639 x 178 ) / 113742

GCD(639, 178) = 113742 / 113742

GCD(639, 178) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 60

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

LCM(1, 60) = 60

GCD(1, 60) = ( 1 x 60 ) / 60

GCD(1, 60) = 60 / 60

GCD(1, 60) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 317

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

LCM(1, 317) = 317

GCD(1, 317) = ( 1 x 317 ) / 317

GCD(1, 317) = 317 / 317

GCD(1, 317) = 1

GCD of 639, 178, 60, 317 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 227, 142, 66, 451
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• GCD of 310, 538, 70, 377
• GCD of 274, 808, 92, 592
• GCD of 783, 738, 68, 329

1. What is the GCD of 639, 178, 60, 317?

GCD of 639, 178, 60, 317 is 1

2. Where do I get the detailed procedure to find GCD of 639, 178, 60, 317?

You can find a detailed procedure to find GCD of 639, 178, 60, 317 on our page.

3. How to find GCD of 639, 178, 60, 317 on a calculator?

You can find the GCD of 639, 178, 60, 317 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.