GCD of 389, 209, 221 Calculator

Given Input numbers are 389, 209, 221

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

Divisors of 389

List of positive integer divisors of 389 that divides 389 without a remainder.

1, 389

Divisors of 209

List of positive integer divisors of 209 that divides 209 without a remainder.

1, 11, 19, 209

Divisors of 221

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

1, 13, 17, 221

Greatest Common Divisior

We found the divisors of 389, 209, 221 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 389, 209, 221 is 1.

Therefore, GCD of numbers 389, 209, 221 is 1

Given Input Data is 389, 209, 221

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

Prime Factorization of 389 is 389

Prime Factorization of 209 is 11 x 19

Prime Factorization of 221 is 13 x 17

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(389, 209) = 81301

GCD(389, 209) = ( 389 x 209 ) / 81301

GCD(389, 209) = 81301 / 81301

GCD(389, 209) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 221

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

LCM(1, 221) = 221

GCD(1, 221) = ( 1 x 221 ) / 221

GCD(1, 221) = 221 / 221

GCD(1, 221) = 1

GCD of 389, 209, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 887, 199, 758
• GCD of 868, 388, 267
• GCD of 264, 807, 668
• GCD of 566, 570, 847
• GCD of 616, 917, 470

1. What is the GCD of 389, 209, 221?

GCD of 389, 209, 221 is 1

2. Where do I get the detailed procedure to find GCD of 389, 209, 221?

You can find a detailed procedure to find GCD of 389, 209, 221 on our page.

3. How to find GCD of 389, 209, 221 on a calculator?

You can find the GCD of 389, 209, 221 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.