GCD of 81, 80, 77 Calculator

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


Make use of GCD Calculator to determine the Greatest Common Divisor of 81, 80, 77 i.e. 1 largest integer that divides all the numbers equally.

GCD of 81, 80, 77 is 1

GCD(81, 80, 77) = 1

Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345

GCD of

GCD of numbers 81, 80, 77 is 1

GCD(81, 80, 77) = 1

GCD of 81,80,77 Calculator

GCDof 81,80,77 is 1

Given Input numbers are 81, 80, 77

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 80

List of positive integer divisors of 80 that divides 80 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Divisors of 77

List of positive integer divisors of 77 that divides 77 without a remainder.

1, 7, 11, 77

Greatest Common Divisior

We found the divisors of 81, 80, 77 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 81, 80, 77 is 1.

Therefore, GCD of numbers 81, 80, 77 is 1

Finding GCD of 81, 80, 77 using Prime Factorization

Given Input Data is 81, 80, 77

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 80 is 2 x 2 x 2 x 2 x 5

Prime Factorization of 77 is 7 x 11

The above numbers do not have any common prime factor. So GCD is 1

Finding GCD of 81, 80, 77 using LCM Formula

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, 80) = 6480

GCD(81, 80) = ( 81 x 80 ) / 6480

GCD(81, 80) = 6480 / 6480

GCD(81, 80) = 1


Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 77

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

LCM(1, 77) = 77

GCD(1, 77) = ( 1 x 77 ) / 77

GCD(1, 77) = 77 / 77

GCD(1, 77) = 1

GCD of 81, 80, 77 is 1

GCD of Numbers Calculation Examples

Here are some samples of GCD of Numbers calculations.

FAQs on GCD of numbers 81, 80, 77

1. What is the GCD of 81, 80, 77?

GCD of 81, 80, 77 is 1


2. Where do I get the detailed procedure to find GCD of 81, 80, 77?

You can find a detailed procedure to find GCD of 81, 80, 77 on our page.


3. How to find GCD of 81, 80, 77 on a calculator?

You can find the GCD of 81, 80, 77 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.