GCD of 765, 938, 639, 961 Calculator

Given Input numbers are 765, 938, 639, 961

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

Divisors of 765

List of positive integer divisors of 765 that divides 765 without a remainder.

1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765

Divisors of 938

List of positive integer divisors of 938 that divides 938 without a remainder.

1, 2, 7, 14, 67, 134, 469, 938

Divisors of 639

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

1, 3, 9, 71, 213, 639

Divisors of 961

List of positive integer divisors of 961 that divides 961 without a remainder.

1, 31, 961

Greatest Common Divisior

We found the divisors of 765, 938, 639, 961 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 765, 938, 639, 961 is 1.

Therefore, GCD of numbers 765, 938, 639, 961 is 1

Given Input Data is 765, 938, 639, 961

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

Prime Factorization of 765 is 3 x 3 x 5 x 17

Prime Factorization of 938 is 2 x 7 x 67

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 961 is 31 x 31

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(765, 938) = 717570

GCD(765, 938) = ( 765 x 938 ) / 717570

GCD(765, 938) = 717570 / 717570

GCD(765, 938) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 639

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

LCM(1, 639) = 639

GCD(1, 639) = ( 1 x 639 ) / 639

GCD(1, 639) = 639 / 639

GCD(1, 639) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 961

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

LCM(1, 961) = 961

GCD(1, 961) = ( 1 x 961 ) / 961

GCD(1, 961) = 961 / 961

GCD(1, 961) = 1

GCD of 765, 938, 639, 961 is 1

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1. What is the GCD of 765, 938, 639, 961?

GCD of 765, 938, 639, 961 is 1

2. Where do I get the detailed procedure to find GCD of 765, 938, 639, 961?

You can find a detailed procedure to find GCD of 765, 938, 639, 961 on our page.

3. How to find GCD of 765, 938, 639, 961 on a calculator?

You can find the GCD of 765, 938, 639, 961 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.