GCD of 221, 457, 86, 388 Calculator

Given Input numbers are 221, 457, 86, 388

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 457

List of positive integer divisors of 457 that divides 457 without a remainder.

1, 457

Divisors of 86

List of positive integer divisors of 86 that divides 86 without a remainder.

1, 2, 43, 86

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

Greatest Common Divisior

We found the divisors of 221, 457, 86, 388 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 221, 457, 86, 388 is 1.

Therefore, GCD of numbers 221, 457, 86, 388 is 1

Given Input Data is 221, 457, 86, 388

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

Prime Factorization of 221 is 13 x 17

Prime Factorization of 457 is 457

Prime Factorization of 86 is 2 x 43

Prime Factorization of 388 is 2 x 2 x 97

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, 457) = 100997

GCD(221, 457) = ( 221 x 457 ) / 100997

GCD(221, 457) = 100997 / 100997

GCD(221, 457) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 86

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

LCM(1, 86) = 86

GCD(1, 86) = ( 1 x 86 ) / 86

GCD(1, 86) = 86 / 86

GCD(1, 86) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 388

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

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

GCD(1, 388) = 388 / 388

GCD(1, 388) = 1

GCD of 221, 457, 86, 388 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 996, 927, 22, 767
• GCD of 669, 683, 79, 266
• GCD of 818, 674, 90, 804
• GCD of 290, 341, 52, 744
• GCD of 825, 605, 13, 668

1. What is the GCD of 221, 457, 86, 388?

GCD of 221, 457, 86, 388 is 1

2. Where do I get the detailed procedure to find GCD of 221, 457, 86, 388?

You can find a detailed procedure to find GCD of 221, 457, 86, 388 on our page.

3. How to find GCD of 221, 457, 86, 388 on a calculator?

You can find the GCD of 221, 457, 86, 388 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.