GCD of 921, 423, 43, 656 Calculator

Given Input numbers are 921, 423, 43, 656

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

Divisors of 921

List of positive integer divisors of 921 that divides 921 without a remainder.

1, 3, 307, 921

Divisors of 423

List of positive integer divisors of 423 that divides 423 without a remainder.

1, 3, 9, 47, 141, 423

Divisors of 43

List of positive integer divisors of 43 that divides 43 without a remainder.

1, 43

Divisors of 656

List of positive integer divisors of 656 that divides 656 without a remainder.

1, 2, 4, 8, 16, 41, 82, 164, 328, 656

Greatest Common Divisior

We found the divisors of 921, 423, 43, 656 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 921, 423, 43, 656 is 1.

Therefore, GCD of numbers 921, 423, 43, 656 is 1

Given Input Data is 921, 423, 43, 656

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

Prime Factorization of 921 is 3 x 307

Prime Factorization of 423 is 3 x 3 x 47

Prime Factorization of 43 is 43

Prime Factorization of 656 is 2 x 2 x 2 x 2 x 41

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(921, 423) = 129861

GCD(921, 423) = ( 921 x 423 ) / 129861

GCD(921, 423) = 389583 / 129861

GCD(921, 423) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 43

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

LCM(3, 43) = 129

GCD(3, 43) = ( 3 x 43 ) / 129

GCD(3, 43) = 129 / 129

GCD(3, 43) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 656

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

LCM(1, 656) = 656

GCD(1, 656) = ( 1 x 656 ) / 656

GCD(1, 656) = 656 / 656

GCD(1, 656) = 1

GCD of 921, 423, 43, 656 is 1

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1. What is the GCD of 921, 423, 43, 656?

GCD of 921, 423, 43, 656 is 1

2. Where do I get the detailed procedure to find GCD of 921, 423, 43, 656?

You can find a detailed procedure to find GCD of 921, 423, 43, 656 on our page.

3. How to find GCD of 921, 423, 43, 656 on a calculator?

You can find the GCD of 921, 423, 43, 656 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.