GCD of 162, 570, 23, 991 Calculator

Given Input numbers are 162, 570, 23, 991

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

Divisors of 162

List of positive integer divisors of 162 that divides 162 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 81, 162

Divisors of 570

List of positive integer divisors of 570 that divides 570 without a remainder.

1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570

Divisors of 23

List of positive integer divisors of 23 that divides 23 without a remainder.

1, 23

Divisors of 991

List of positive integer divisors of 991 that divides 991 without a remainder.

1, 991

Greatest Common Divisior

We found the divisors of 162, 570, 23, 991 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 162, 570, 23, 991 is 1.

Therefore, GCD of numbers 162, 570, 23, 991 is 1

Given Input Data is 162, 570, 23, 991

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

Prime Factorization of 162 is 2 x 3 x 3 x 3 x 3

Prime Factorization of 570 is 2 x 3 x 5 x 19

Prime Factorization of 23 is 23

Prime Factorization of 991 is 991

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(162, 570) = 15390

GCD(162, 570) = ( 162 x 570 ) / 15390

GCD(162, 570) = 92340 / 15390

GCD(162, 570) = 6

Step2:

Here we consider the GCD from the above i.e. 6 as first number and the next as 23

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

LCM(6, 23) = 138

GCD(6, 23) = ( 6 x 23 ) / 138

GCD(6, 23) = 138 / 138

GCD(6, 23) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 991

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

LCM(1, 991) = 991

GCD(1, 991) = ( 1 x 991 ) / 991

GCD(1, 991) = 991 / 991

GCD(1, 991) = 1

GCD of 162, 570, 23, 991 is 1

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• GCD of 887, 267, 52, 942
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• GCD of 345, 993, 99, 694

1. What is the GCD of 162, 570, 23, 991?

GCD of 162, 570, 23, 991 is 1

2. Where do I get the detailed procedure to find GCD of 162, 570, 23, 991?

You can find a detailed procedure to find GCD of 162, 570, 23, 991 on our page.

3. How to find GCD of 162, 570, 23, 991 on a calculator?

You can find the GCD of 162, 570, 23, 991 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.