GCD of 18, 602, 721, 521 Calculator

Given Input numbers are 18, 602, 721, 521

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

Divisors of 18

List of positive integer divisors of 18 that divides 18 without a remainder.

1, 2, 3, 6, 9, 18

Divisors of 602

List of positive integer divisors of 602 that divides 602 without a remainder.

1, 2, 7, 14, 43, 86, 301, 602

Divisors of 721

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

1, 7, 103, 721

Divisors of 521

List of positive integer divisors of 521 that divides 521 without a remainder.

1, 521

Greatest Common Divisior

We found the divisors of 18, 602, 721, 521 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 18, 602, 721, 521 is 1.

Therefore, GCD of numbers 18, 602, 721, 521 is 1

Given Input Data is 18, 602, 721, 521

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

Prime Factorization of 18 is 2 x 3 x 3

Prime Factorization of 602 is 2 x 7 x 43

Prime Factorization of 721 is 7 x 103

Prime Factorization of 521 is 521

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(18, 602) = 5418

GCD(18, 602) = ( 18 x 602 ) / 5418

GCD(18, 602) = 10836 / 5418

GCD(18, 602) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 721

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

LCM(2, 721) = 1442

GCD(2, 721) = ( 2 x 721 ) / 1442

GCD(2, 721) = 1442 / 1442

GCD(2, 721) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 521

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

LCM(1, 521) = 521

GCD(1, 521) = ( 1 x 521 ) / 521

GCD(1, 521) = 521 / 521

GCD(1, 521) = 1

GCD of 18, 602, 721, 521 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 51, 179, 251, 532
• GCD of 64, 587, 728, 543
• GCD of 55, 490, 580, 212
• GCD of 79, 380, 472, 102
• GCD of 38, 198, 231, 100

1. What is the GCD of 18, 602, 721, 521?

GCD of 18, 602, 721, 521 is 1

2. Where do I get the detailed procedure to find GCD of 18, 602, 721, 521?

You can find a detailed procedure to find GCD of 18, 602, 721, 521 on our page.

3. How to find GCD of 18, 602, 721, 521 on a calculator?

You can find the GCD of 18, 602, 721, 521 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.