GCD of 970, 772, 809, 646 Calculator

Given Input numbers are 970, 772, 809, 646

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

Divisors of 970

List of positive integer divisors of 970 that divides 970 without a remainder.

1, 2, 5, 10, 97, 194, 485, 970

Divisors of 772

List of positive integer divisors of 772 that divides 772 without a remainder.

1, 2, 4, 193, 386, 772

Divisors of 809

List of positive integer divisors of 809 that divides 809 without a remainder.

1, 809

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

1, 2, 17, 19, 34, 38, 323, 646

Greatest Common Divisior

We found the divisors of 970, 772, 809, 646 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 970, 772, 809, 646 is 1.

Therefore, GCD of numbers 970, 772, 809, 646 is 1

Given Input Data is 970, 772, 809, 646

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

Prime Factorization of 970 is 2 x 5 x 97

Prime Factorization of 772 is 2 x 2 x 193

Prime Factorization of 809 is 809

Prime Factorization of 646 is 2 x 17 x 19

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(970, 772) = 374420

GCD(970, 772) = ( 970 x 772 ) / 374420

GCD(970, 772) = 748840 / 374420

GCD(970, 772) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 809

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

LCM(2, 809) = 1618

GCD(2, 809) = ( 2 x 809 ) / 1618

GCD(2, 809) = 1618 / 1618

GCD(2, 809) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 646

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

LCM(1, 646) = 646

GCD(1, 646) = ( 1 x 646 ) / 646

GCD(1, 646) = 646 / 646

GCD(1, 646) = 1

GCD of 970, 772, 809, 646 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 910, 435, 548, 272
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• GCD of 514, 857, 305, 597

1. What is the GCD of 970, 772, 809, 646?

GCD of 970, 772, 809, 646 is 1

2. Where do I get the detailed procedure to find GCD of 970, 772, 809, 646?

You can find a detailed procedure to find GCD of 970, 772, 809, 646 on our page.

3. How to find GCD of 970, 772, 809, 646 on a calculator?

You can find the GCD of 970, 772, 809, 646 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.