GCD of 421, 721, 115 Calculator

Given Input numbers are 421, 721, 115

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

Divisors of 421

List of positive integer divisors of 421 that divides 421 without a remainder.

1, 421

Divisors of 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

Divisors of 115

List of positive integer divisors of 115 that divides 115 without a remainder.

1, 5, 23, 115

Greatest Common Divisior

We found the divisors of 421, 721, 115 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 421, 721, 115 is 1.

Therefore, GCD of numbers 421, 721, 115 is 1

Given Input Data is 421, 721, 115

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

Prime Factorization of 421 is 421

Prime Factorization of 721 is 7 x 103

Prime Factorization of 115 is 5 x 23

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(421, 721) = 303541

GCD(421, 721) = ( 421 x 721 ) / 303541

GCD(421, 721) = 303541 / 303541

GCD(421, 721) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 115

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

LCM(1, 115) = 115

GCD(1, 115) = ( 1 x 115 ) / 115

GCD(1, 115) = 115 / 115

GCD(1, 115) = 1

GCD of 421, 721, 115 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 194, 312, 114
• GCD of 699, 113, 867
• GCD of 977, 209, 221
• GCD of 474, 797, 307
• GCD of 427, 164, 520

1. What is the GCD of 421, 721, 115?

GCD of 421, 721, 115 is 1

2. Where do I get the detailed procedure to find GCD of 421, 721, 115?

You can find a detailed procedure to find GCD of 421, 721, 115 on our page.

3. How to find GCD of 421, 721, 115 on a calculator?

You can find the GCD of 421, 721, 115 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.