GCD of 161, 865, 42, 829 Calculator

Given Input numbers are 161, 865, 42, 829

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

Divisors of 161

List of positive integer divisors of 161 that divides 161 without a remainder.

1, 7, 23, 161

Divisors of 865

List of positive integer divisors of 865 that divides 865 without a remainder.

1, 5, 173, 865

Divisors of 42

List of positive integer divisors of 42 that divides 42 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42

Divisors of 829

List of positive integer divisors of 829 that divides 829 without a remainder.

1, 829

Greatest Common Divisior

We found the divisors of 161, 865, 42, 829 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 161, 865, 42, 829 is 1.

Therefore, GCD of numbers 161, 865, 42, 829 is 1

Given Input Data is 161, 865, 42, 829

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

Prime Factorization of 161 is 7 x 23

Prime Factorization of 865 is 5 x 173

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 829 is 829

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(161, 865) = 139265

GCD(161, 865) = ( 161 x 865 ) / 139265

GCD(161, 865) = 139265 / 139265

GCD(161, 865) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 42

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

LCM(1, 42) = 42

GCD(1, 42) = ( 1 x 42 ) / 42

GCD(1, 42) = 42 / 42

GCD(1, 42) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 829

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

LCM(1, 829) = 829

GCD(1, 829) = ( 1 x 829 ) / 829

GCD(1, 829) = 829 / 829

GCD(1, 829) = 1

GCD of 161, 865, 42, 829 is 1

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1. What is the GCD of 161, 865, 42, 829?

GCD of 161, 865, 42, 829 is 1

2. Where do I get the detailed procedure to find GCD of 161, 865, 42, 829?

You can find a detailed procedure to find GCD of 161, 865, 42, 829 on our page.

3. How to find GCD of 161, 865, 42, 829 on a calculator?

You can find the GCD of 161, 865, 42, 829 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.