GCD of 523, 917, 79, 639 Calculator

Given Input numbers are 523, 917, 79, 639

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

Divisors of 523

List of positive integer divisors of 523 that divides 523 without a remainder.

1, 523

Divisors of 917

List of positive integer divisors of 917 that divides 917 without a remainder.

1, 7, 131, 917

Divisors of 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Greatest Common Divisior

We found the divisors of 523, 917, 79, 639 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 523, 917, 79, 639 is 1.

Therefore, GCD of numbers 523, 917, 79, 639 is 1

Given Input Data is 523, 917, 79, 639

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

Prime Factorization of 523 is 523

Prime Factorization of 917 is 7 x 131

Prime Factorization of 79 is 79

Prime Factorization of 639 is 3 x 3 x 71

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(523, 917) = 479591

GCD(523, 917) = ( 523 x 917 ) / 479591

GCD(523, 917) = 479591 / 479591

GCD(523, 917) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 79

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

LCM(1, 79) = 79

GCD(1, 79) = ( 1 x 79 ) / 79

GCD(1, 79) = 79 / 79

GCD(1, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 639

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

LCM(1, 639) = 639

GCD(1, 639) = ( 1 x 639 ) / 639

GCD(1, 639) = 639 / 639

GCD(1, 639) = 1

GCD of 523, 917, 79, 639 is 1

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1. What is the GCD of 523, 917, 79, 639?

GCD of 523, 917, 79, 639 is 1

2. Where do I get the detailed procedure to find GCD of 523, 917, 79, 639?

You can find a detailed procedure to find GCD of 523, 917, 79, 639 on our page.

3. How to find GCD of 523, 917, 79, 639 on a calculator?

You can find the GCD of 523, 917, 79, 639 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.