GCD of 647, 539, 13, 397 Calculator

Given Input numbers are 647, 539, 13, 397

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

Divisors of 647

List of positive integer divisors of 647 that divides 647 without a remainder.

1, 647

Divisors of 539

List of positive integer divisors of 539 that divides 539 without a remainder.

1, 7, 11, 49, 77, 539

Divisors of 13

List of positive integer divisors of 13 that divides 13 without a remainder.

1, 13

Divisors of 397

List of positive integer divisors of 397 that divides 397 without a remainder.

1, 397

Greatest Common Divisior

We found the divisors of 647, 539, 13, 397 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 647, 539, 13, 397 is 1.

Therefore, GCD of numbers 647, 539, 13, 397 is 1

Given Input Data is 647, 539, 13, 397

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

Prime Factorization of 647 is 647

Prime Factorization of 539 is 7 x 7 x 11

Prime Factorization of 13 is 13

Prime Factorization of 397 is 397

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(647, 539) = 348733

GCD(647, 539) = ( 647 x 539 ) / 348733

GCD(647, 539) = 348733 / 348733

GCD(647, 539) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 13

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

LCM(1, 13) = 13

GCD(1, 13) = ( 1 x 13 ) / 13

GCD(1, 13) = 13 / 13

GCD(1, 13) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 397

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

LCM(1, 397) = 397

GCD(1, 397) = ( 1 x 397 ) / 397

GCD(1, 397) = 397 / 397

GCD(1, 397) = 1

GCD of 647, 539, 13, 397 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 590, 197, 82, 297
• GCD of 806, 408, 50, 308
• GCD of 669, 668, 82, 200
• GCD of 716, 845, 97, 249
• GCD of 197, 650, 52, 249

1. What is the GCD of 647, 539, 13, 397?

GCD of 647, 539, 13, 397 is 1

2. Where do I get the detailed procedure to find GCD of 647, 539, 13, 397?

You can find a detailed procedure to find GCD of 647, 539, 13, 397 on our page.

3. How to find GCD of 647, 539, 13, 397 on a calculator?

You can find the GCD of 647, 539, 13, 397 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.