GCD of 207, 963, 392, 647 Calculator

Given Input numbers are 207, 963, 392, 647

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

Divisors of 207

List of positive integer divisors of 207 that divides 207 without a remainder.

1, 3, 9, 23, 69, 207

Divisors of 963

List of positive integer divisors of 963 that divides 963 without a remainder.

1, 3, 9, 107, 321, 963

Divisors of 392

List of positive integer divisors of 392 that divides 392 without a remainder.

1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392

Divisors of 647

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

1, 647

Greatest Common Divisior

We found the divisors of 207, 963, 392, 647 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 207, 963, 392, 647 is 1.

Therefore, GCD of numbers 207, 963, 392, 647 is 1

Given Input Data is 207, 963, 392, 647

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

Prime Factorization of 207 is 3 x 3 x 23

Prime Factorization of 963 is 3 x 3 x 107

Prime Factorization of 392 is 2 x 2 x 2 x 7 x 7

Prime Factorization of 647 is 647

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(207, 963) = 22149

GCD(207, 963) = ( 207 x 963 ) / 22149

GCD(207, 963) = 199341 / 22149

GCD(207, 963) = 9

Step2:

Here we consider the GCD from the above i.e. 9 as first number and the next as 392

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

LCM(9, 392) = 3528

GCD(9, 392) = ( 9 x 392 ) / 3528

GCD(9, 392) = 3528 / 3528

GCD(9, 392) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 647

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

LCM(1, 647) = 647

GCD(1, 647) = ( 1 x 647 ) / 647

GCD(1, 647) = 647 / 647

GCD(1, 647) = 1

GCD of 207, 963, 392, 647 is 1

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1. What is the GCD of 207, 963, 392, 647?

GCD of 207, 963, 392, 647 is 1

2. Where do I get the detailed procedure to find GCD of 207, 963, 392, 647?

You can find a detailed procedure to find GCD of 207, 963, 392, 647 on our page.

3. How to find GCD of 207, 963, 392, 647 on a calculator?

You can find the GCD of 207, 963, 392, 647 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.