GCD of 721, 544, 28, 401 Calculator

Given Input numbers are 721, 544, 28, 401

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

Divisors of 721

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

1, 7, 103, 721

Divisors of 544

List of positive integer divisors of 544 that divides 544 without a remainder.

1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 401

List of positive integer divisors of 401 that divides 401 without a remainder.

1, 401

Greatest Common Divisior

We found the divisors of 721, 544, 28, 401 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 721, 544, 28, 401 is 1.

Therefore, GCD of numbers 721, 544, 28, 401 is 1

Given Input Data is 721, 544, 28, 401

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

Prime Factorization of 721 is 7 x 103

Prime Factorization of 544 is 2 x 2 x 2 x 2 x 2 x 17

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 401 is 401

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(721, 544) = 392224

GCD(721, 544) = ( 721 x 544 ) / 392224

GCD(721, 544) = 392224 / 392224

GCD(721, 544) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 28

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

LCM(1, 28) = 28

GCD(1, 28) = ( 1 x 28 ) / 28

GCD(1, 28) = 28 / 28

GCD(1, 28) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 401

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

LCM(1, 401) = 401

GCD(1, 401) = ( 1 x 401 ) / 401

GCD(1, 401) = 401 / 401

GCD(1, 401) = 1

GCD of 721, 544, 28, 401 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 654, 348, 87, 273
• GCD of 249, 838, 89, 386
• GCD of 817, 112, 43, 503
• GCD of 356, 427, 25, 794
• GCD of 610, 633, 57, 522

1. What is the GCD of 721, 544, 28, 401?

GCD of 721, 544, 28, 401 is 1

2. Where do I get the detailed procedure to find GCD of 721, 544, 28, 401?

You can find a detailed procedure to find GCD of 721, 544, 28, 401 on our page.

3. How to find GCD of 721, 544, 28, 401 on a calculator?

You can find the GCD of 721, 544, 28, 401 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.