GCD of 221, 815, 15, 881 Calculator

Given Input numbers are 221, 815, 15, 881

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

Divisors of 221

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

1, 13, 17, 221

Divisors of 815

List of positive integer divisors of 815 that divides 815 without a remainder.

1, 5, 163, 815

Divisors of 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

Divisors of 881

List of positive integer divisors of 881 that divides 881 without a remainder.

1, 881

Greatest Common Divisior

We found the divisors of 221, 815, 15, 881 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 221, 815, 15, 881 is 1.

Therefore, GCD of numbers 221, 815, 15, 881 is 1

Given Input Data is 221, 815, 15, 881

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

Prime Factorization of 221 is 13 x 17

Prime Factorization of 815 is 5 x 163

Prime Factorization of 15 is 3 x 5

Prime Factorization of 881 is 881

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(221, 815) = 180115

GCD(221, 815) = ( 221 x 815 ) / 180115

GCD(221, 815) = 180115 / 180115

GCD(221, 815) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 15

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

LCM(1, 15) = 15

GCD(1, 15) = ( 1 x 15 ) / 15

GCD(1, 15) = 15 / 15

GCD(1, 15) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 881

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

LCM(1, 881) = 881

GCD(1, 881) = ( 1 x 881 ) / 881

GCD(1, 881) = 881 / 881

GCD(1, 881) = 1

GCD of 221, 815, 15, 881 is 1

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1. What is the GCD of 221, 815, 15, 881?

GCD of 221, 815, 15, 881 is 1

2. Where do I get the detailed procedure to find GCD of 221, 815, 15, 881?

You can find a detailed procedure to find GCD of 221, 815, 15, 881 on our page.

3. How to find GCD of 221, 815, 15, 881 on a calculator?

You can find the GCD of 221, 815, 15, 881 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.