GCD of 691, 531, 18, 115 Calculator

Given Input numbers are 691, 531, 18, 115

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

Divisors of 691

List of positive integer divisors of 691 that divides 691 without a remainder.

1, 691

Divisors of 531

List of positive integer divisors of 531 that divides 531 without a remainder.

1, 3, 9, 59, 177, 531

Divisors of 18

List of positive integer divisors of 18 that divides 18 without a remainder.

1, 2, 3, 6, 9, 18

Divisors of 115

List of positive integer divisors of 115 that divides 115 without a remainder.

1, 5, 23, 115

Greatest Common Divisior

We found the divisors of 691, 531, 18, 115 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 691, 531, 18, 115 is 1.

Therefore, GCD of numbers 691, 531, 18, 115 is 1

Given Input Data is 691, 531, 18, 115

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

Prime Factorization of 691 is 691

Prime Factorization of 531 is 3 x 3 x 59

Prime Factorization of 18 is 2 x 3 x 3

Prime Factorization of 115 is 5 x 23

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(691, 531) = 366921

GCD(691, 531) = ( 691 x 531 ) / 366921

GCD(691, 531) = 366921 / 366921

GCD(691, 531) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 18

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

LCM(1, 18) = 18

GCD(1, 18) = ( 1 x 18 ) / 18

GCD(1, 18) = 18 / 18

GCD(1, 18) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 115

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

LCM(1, 115) = 115

GCD(1, 115) = ( 1 x 115 ) / 115

GCD(1, 115) = 115 / 115

GCD(1, 115) = 1

GCD of 691, 531, 18, 115 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 934, 971, 60, 453
• GCD of 398, 241, 34, 821
• GCD of 207, 648, 81, 738
• GCD of 373, 189, 84, 748
• GCD of 176, 441, 18, 760

1. What is the GCD of 691, 531, 18, 115?

GCD of 691, 531, 18, 115 is 1

2. Where do I get the detailed procedure to find GCD of 691, 531, 18, 115?

You can find a detailed procedure to find GCD of 691, 531, 18, 115 on our page.

3. How to find GCD of 691, 531, 18, 115 on a calculator?

You can find the GCD of 691, 531, 18, 115 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.