GCD of 18, 81, 53 Calculator

Given Input numbers are 18, 81, 53

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

Divisors of 18

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

1, 2, 3, 6, 9, 18

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 53

List of positive integer divisors of 53 that divides 53 without a remainder.

1, 53

Greatest Common Divisior

We found the divisors of 18, 81, 53 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 18, 81, 53 is 1.

Therefore, GCD of numbers 18, 81, 53 is 1

Given Input Data is 18, 81, 53

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

Prime Factorization of 18 is 2 x 3 x 3

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 53 is 53

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(18, 81) = 162

GCD(18, 81) = ( 18 x 81 ) / 162

GCD(18, 81) = 1458 / 162

GCD(18, 81) = 9

Step2:

Here we consider the GCD from the above i.e. 9 as first number and the next as 53

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

LCM(9, 53) = 477

GCD(9, 53) = ( 9 x 53 ) / 477

GCD(9, 53) = 477 / 477

GCD(9, 53) = 1

GCD of 18, 81, 53 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 88, 19, 71
• GCD of 77, 29, 58
• GCD of 14, 72, 28
• GCD of 79, 48, 40
• GCD of 57, 86, 89

1. What is the GCD of 18, 81, 53?

GCD of 18, 81, 53 is 1

2. Where do I get the detailed procedure to find GCD of 18, 81, 53?

You can find a detailed procedure to find GCD of 18, 81, 53 on our page.

3. How to find GCD of 18, 81, 53 on a calculator?

You can find the GCD of 18, 81, 53 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.