GCD of 165, 811, 78, 970 Calculator

Given Input numbers are 165, 811, 78, 970

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

Divisors of 165

List of positive integer divisors of 165 that divides 165 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165

Divisors of 811

List of positive integer divisors of 811 that divides 811 without a remainder.

1, 811

Divisors of 78

List of positive integer divisors of 78 that divides 78 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78

Divisors of 970

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

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

Greatest Common Divisior

We found the divisors of 165, 811, 78, 970 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 165, 811, 78, 970 is 1.

Therefore, GCD of numbers 165, 811, 78, 970 is 1

Given Input Data is 165, 811, 78, 970

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

Prime Factorization of 165 is 3 x 5 x 11

Prime Factorization of 811 is 811

Prime Factorization of 78 is 2 x 3 x 13

Prime Factorization of 970 is 2 x 5 x 97

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(165, 811) = 133815

GCD(165, 811) = ( 165 x 811 ) / 133815

GCD(165, 811) = 133815 / 133815

GCD(165, 811) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 78

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

LCM(1, 78) = 78

GCD(1, 78) = ( 1 x 78 ) / 78

GCD(1, 78) = 78 / 78

GCD(1, 78) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 970

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

LCM(1, 970) = 970

GCD(1, 970) = ( 1 x 970 ) / 970

GCD(1, 970) = 970 / 970

GCD(1, 970) = 1

GCD of 165, 811, 78, 970 is 1

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• GCD of 748, 814, 23, 361
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1. What is the GCD of 165, 811, 78, 970?

GCD of 165, 811, 78, 970 is 1

2. Where do I get the detailed procedure to find GCD of 165, 811, 78, 970?

You can find a detailed procedure to find GCD of 165, 811, 78, 970 on our page.

3. How to find GCD of 165, 811, 78, 970 on a calculator?

You can find the GCD of 165, 811, 78, 970 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.