GCD of 81, 59, 99, 15 Calculator

Given Input numbers are 81, 59, 99, 15

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

Divisors of 81

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

1, 3, 9, 27, 81

Divisors of 59

List of positive integer divisors of 59 that divides 59 without a remainder.

1, 59

Divisors of 99

List of positive integer divisors of 99 that divides 99 without a remainder.

1, 3, 9, 11, 33, 99

Divisors of 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

Greatest Common Divisior

We found the divisors of 81, 59, 99, 15 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 81, 59, 99, 15 is 1.

Therefore, GCD of numbers 81, 59, 99, 15 is 1

Given Input Data is 81, 59, 99, 15

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

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

Prime Factorization of 59 is 59

Prime Factorization of 99 is 3 x 3 x 11

Prime Factorization of 15 is 3 x 5

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(81, 59) = 4779

GCD(81, 59) = ( 81 x 59 ) / 4779

GCD(81, 59) = 4779 / 4779

GCD(81, 59) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 99

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

LCM(1, 99) = 99

GCD(1, 99) = ( 1 x 99 ) / 99

GCD(1, 99) = 99 / 99

GCD(1, 99) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 15

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

LCM(1, 15) = 15

GCD(1, 15) = ( 1 x 15 ) / 15

GCD(1, 15) = 15 / 15

GCD(1, 15) = 1

GCD of 81, 59, 99, 15 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 21, 47, 41, 63
• GCD of 67, 57, 81, 58
• GCD of 84, 59, 93, 94
• GCD of 37, 43, 82, 92
• GCD of 38, 59, 92, 95

1. What is the GCD of 81, 59, 99, 15?

GCD of 81, 59, 99, 15 is 1

2. Where do I get the detailed procedure to find GCD of 81, 59, 99, 15?

You can find a detailed procedure to find GCD of 81, 59, 99, 15 on our page.

3. How to find GCD of 81, 59, 99, 15 on a calculator?

You can find the GCD of 81, 59, 99, 15 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.