GCD of 780, 781, 12, 279 Calculator

Given Input numbers are 780, 781, 12, 279

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

Divisors of 780

List of positive integer divisors of 780 that divides 780 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 781

List of positive integer divisors of 781 that divides 781 without a remainder.

1, 11, 71, 781

Divisors of 12

List of positive integer divisors of 12 that divides 12 without a remainder.

1, 2, 3, 4, 6, 12

Divisors of 279

List of positive integer divisors of 279 that divides 279 without a remainder.

1, 3, 9, 31, 93, 279

Greatest Common Divisior

We found the divisors of 780, 781, 12, 279 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 780, 781, 12, 279 is 1.

Therefore, GCD of numbers 780, 781, 12, 279 is 1

Given Input Data is 780, 781, 12, 279

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

Prime Factorization of 780 is 2 x 2 x 3 x 5 x 13

Prime Factorization of 781 is 11 x 71

Prime Factorization of 12 is 2 x 2 x 3

Prime Factorization of 279 is 3 x 3 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(780, 781) = 609180

GCD(780, 781) = ( 780 x 781 ) / 609180

GCD(780, 781) = 609180 / 609180

GCD(780, 781) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 12

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

LCM(1, 12) = 12

GCD(1, 12) = ( 1 x 12 ) / 12

GCD(1, 12) = 12 / 12

GCD(1, 12) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 279

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

LCM(1, 279) = 279

GCD(1, 279) = ( 1 x 279 ) / 279

GCD(1, 279) = 279 / 279

GCD(1, 279) = 1

GCD of 780, 781, 12, 279 is 1

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• GCD of 887, 443, 32, 802
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• GCD of 899, 156, 15, 720

1. What is the GCD of 780, 781, 12, 279?

GCD of 780, 781, 12, 279 is 1

2. Where do I get the detailed procedure to find GCD of 780, 781, 12, 279?

You can find a detailed procedure to find GCD of 780, 781, 12, 279 on our page.

3. How to find GCD of 780, 781, 12, 279 on a calculator?

You can find the GCD of 780, 781, 12, 279 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.