GCD of 48, 56, 65, 81 Calculator

Given Input numbers are 48, 56, 65, 81

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

Divisors of 48

List of positive integer divisors of 48 that divides 48 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Divisors of 56

List of positive integer divisors of 56 that divides 56 without a remainder.

1, 2, 4, 7, 8, 14, 28, 56

Divisors of 65

List of positive integer divisors of 65 that divides 65 without a remainder.

1, 5, 13, 65

Divisors of 81

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

1, 3, 9, 27, 81

Greatest Common Divisior

We found the divisors of 48, 56, 65, 81 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 48, 56, 65, 81 is 1.

Therefore, GCD of numbers 48, 56, 65, 81 is 1

Given Input Data is 48, 56, 65, 81

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

Prime Factorization of 48 is 2 x 2 x 2 x 2 x 3

Prime Factorization of 56 is 2 x 2 x 2 x 7

Prime Factorization of 65 is 5 x 13

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

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(48, 56) = 336

GCD(48, 56) = ( 48 x 56 ) / 336

GCD(48, 56) = 2688 / 336

GCD(48, 56) = 8

Step2:

Here we consider the GCD from the above i.e. 8 as first number and the next as 65

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

LCM(8, 65) = 520

GCD(8, 65) = ( 8 x 65 ) / 520

GCD(8, 65) = 520 / 520

GCD(8, 65) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 81

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

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

GCD(1, 81) = 81 / 81

GCD(1, 81) = 1

GCD of 48, 56, 65, 81 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 84, 64, 11, 77
• GCD of 35, 25, 71, 15
• GCD of 43, 91, 60, 92
• GCD of 38, 99, 32, 39
• GCD of 97, 25, 80, 23

1. What is the GCD of 48, 56, 65, 81?

GCD of 48, 56, 65, 81 is 1

2. Where do I get the detailed procedure to find GCD of 48, 56, 65, 81?

You can find a detailed procedure to find GCD of 48, 56, 65, 81 on our page.

3. How to find GCD of 48, 56, 65, 81 on a calculator?

You can find the GCD of 48, 56, 65, 81 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.