GCD of 12, 221, 660, 481 Calculator

Given Input numbers are 12, 221, 660, 481

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

Divisors of 12

List of positive integer divisors of 12 that divides 12 without a remainder.

1, 2, 3, 4, 6, 12

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Divisors of 660

List of positive integer divisors of 660 that divides 660 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

Divisors of 481

List of positive integer divisors of 481 that divides 481 without a remainder.

1, 13, 37, 481

Greatest Common Divisior

We found the divisors of 12, 221, 660, 481 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 12, 221, 660, 481 is 1.

Therefore, GCD of numbers 12, 221, 660, 481 is 1

Given Input Data is 12, 221, 660, 481

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

Prime Factorization of 12 is 2 x 2 x 3

Prime Factorization of 221 is 13 x 17

Prime Factorization of 660 is 2 x 2 x 3 x 5 x 11

Prime Factorization of 481 is 13 x 37

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(12, 221) = 2652

GCD(12, 221) = ( 12 x 221 ) / 2652

GCD(12, 221) = 2652 / 2652

GCD(12, 221) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 660

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

LCM(1, 660) = 660

GCD(1, 660) = ( 1 x 660 ) / 660

GCD(1, 660) = 660 / 660

GCD(1, 660) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 481

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

LCM(1, 481) = 481

GCD(1, 481) = ( 1 x 481 ) / 481

GCD(1, 481) = 481 / 481

GCD(1, 481) = 1

GCD of 12, 221, 660, 481 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 51, 905, 477, 527
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• GCD of 61, 532, 676, 495

1. What is the GCD of 12, 221, 660, 481?

GCD of 12, 221, 660, 481 is 1

2. Where do I get the detailed procedure to find GCD of 12, 221, 660, 481?

You can find a detailed procedure to find GCD of 12, 221, 660, 481 on our page.

3. How to find GCD of 12, 221, 660, 481 on a calculator?

You can find the GCD of 12, 221, 660, 481 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.