GCD of 920, 489, 128, 843 Calculator

Given Input numbers are 920, 489, 128, 843

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

Divisors of 920

List of positive integer divisors of 920 that divides 920 without a remainder.

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920

Divisors of 489

List of positive integer divisors of 489 that divides 489 without a remainder.

1, 3, 163, 489

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 843

List of positive integer divisors of 843 that divides 843 without a remainder.

1, 3, 281, 843

Greatest Common Divisior

We found the divisors of 920, 489, 128, 843 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 920, 489, 128, 843 is 1.

Therefore, GCD of numbers 920, 489, 128, 843 is 1

Given Input Data is 920, 489, 128, 843

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

Prime Factorization of 920 is 2 x 2 x 2 x 5 x 23

Prime Factorization of 489 is 3 x 163

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 843 is 3 x 281

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(920, 489) = 449880

GCD(920, 489) = ( 920 x 489 ) / 449880

GCD(920, 489) = 449880 / 449880

GCD(920, 489) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 128

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

LCM(1, 128) = 128

GCD(1, 128) = ( 1 x 128 ) / 128

GCD(1, 128) = 128 / 128

GCD(1, 128) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 843

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

LCM(1, 843) = 843

GCD(1, 843) = ( 1 x 843 ) / 843

GCD(1, 843) = 843 / 843

GCD(1, 843) = 1

GCD of 920, 489, 128, 843 is 1

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1. What is the GCD of 920, 489, 128, 843?

GCD of 920, 489, 128, 843 is 1

2. Where do I get the detailed procedure to find GCD of 920, 489, 128, 843?

You can find a detailed procedure to find GCD of 920, 489, 128, 843 on our page.

3. How to find GCD of 920, 489, 128, 843 on a calculator?

You can find the GCD of 920, 489, 128, 843 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.