GCD of 688, 285, 317, 291 Calculator

Given Input numbers are 688, 285, 317, 291

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

Divisors of 688

List of positive integer divisors of 688 that divides 688 without a remainder.

1, 2, 4, 8, 16, 43, 86, 172, 344, 688

Divisors of 285

List of positive integer divisors of 285 that divides 285 without a remainder.

1, 3, 5, 15, 19, 57, 95, 285

Divisors of 317

List of positive integer divisors of 317 that divides 317 without a remainder.

1, 317

Divisors of 291

List of positive integer divisors of 291 that divides 291 without a remainder.

1, 3, 97, 291

Greatest Common Divisior

We found the divisors of 688, 285, 317, 291 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 688, 285, 317, 291 is 1.

Therefore, GCD of numbers 688, 285, 317, 291 is 1

Given Input Data is 688, 285, 317, 291

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

Prime Factorization of 688 is 2 x 2 x 2 x 2 x 43

Prime Factorization of 285 is 3 x 5 x 19

Prime Factorization of 317 is 317

Prime Factorization of 291 is 3 x 97

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(688, 285) = 196080

GCD(688, 285) = ( 688 x 285 ) / 196080

GCD(688, 285) = 196080 / 196080

GCD(688, 285) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 317

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

LCM(1, 317) = 317

GCD(1, 317) = ( 1 x 317 ) / 317

GCD(1, 317) = 317 / 317

GCD(1, 317) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 291

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

LCM(1, 291) = 291

GCD(1, 291) = ( 1 x 291 ) / 291

GCD(1, 291) = 291 / 291

GCD(1, 291) = 1

GCD of 688, 285, 317, 291 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 440, 750, 959, 381
• GCD of 827, 100, 599, 483
• GCD of 119, 319, 284, 952
• GCD of 900, 458, 961, 788
• GCD of 140, 695, 907, 582

1. What is the GCD of 688, 285, 317, 291?

GCD of 688, 285, 317, 291 is 1

2. Where do I get the detailed procedure to find GCD of 688, 285, 317, 291?

You can find a detailed procedure to find GCD of 688, 285, 317, 291 on our page.

3. How to find GCD of 688, 285, 317, 291 on a calculator?

You can find the GCD of 688, 285, 317, 291 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.