GCD of 81, 680, 681, 515 Calculator

Given Input numbers are 81, 680, 681, 515

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 680

List of positive integer divisors of 680 that divides 680 without a remainder.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

Divisors of 681

List of positive integer divisors of 681 that divides 681 without a remainder.

1, 3, 227, 681

Divisors of 515

List of positive integer divisors of 515 that divides 515 without a remainder.

1, 5, 103, 515

Greatest Common Divisior

We found the divisors of 81, 680, 681, 515 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 81, 680, 681, 515 is 1.

Therefore, GCD of numbers 81, 680, 681, 515 is 1

Given Input Data is 81, 680, 681, 515

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 680 is 2 x 2 x 2 x 5 x 17

Prime Factorization of 681 is 3 x 227

Prime Factorization of 515 is 5 x 103

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, 680) = 55080

GCD(81, 680) = ( 81 x 680 ) / 55080

GCD(81, 680) = 55080 / 55080

GCD(81, 680) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 681

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

LCM(1, 681) = 681

GCD(1, 681) = ( 1 x 681 ) / 681

GCD(1, 681) = 681 / 681

GCD(1, 681) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 515

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

LCM(1, 515) = 515

GCD(1, 515) = ( 1 x 515 ) / 515

GCD(1, 515) = 515 / 515

GCD(1, 515) = 1

GCD of 81, 680, 681, 515 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 96, 437, 301, 962
• GCD of 76, 908, 174, 535
• GCD of 91, 190, 161, 277
• GCD of 62, 221, 619, 211
• GCD of 77, 506, 643, 623

1. What is the GCD of 81, 680, 681, 515?

GCD of 81, 680, 681, 515 is 1

2. Where do I get the detailed procedure to find GCD of 81, 680, 681, 515?

You can find a detailed procedure to find GCD of 81, 680, 681, 515 on our page.

3. How to find GCD of 81, 680, 681, 515 on a calculator?

You can find the GCD of 81, 680, 681, 515 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.