GCD of 128, 238, 20, 237 Calculator

Given Input numbers are 128, 238, 20, 237

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

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 238

List of positive integer divisors of 238 that divides 238 without a remainder.

1, 2, 7, 14, 17, 34, 119, 238

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 237

List of positive integer divisors of 237 that divides 237 without a remainder.

1, 3, 79, 237

Greatest Common Divisior

We found the divisors of 128, 238, 20, 237 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 128, 238, 20, 237 is 1.

Therefore, GCD of numbers 128, 238, 20, 237 is 1

Given Input Data is 128, 238, 20, 237

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

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 238 is 2 x 7 x 17

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 237 is 3 x 79

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(128, 238) = 15232

GCD(128, 238) = ( 128 x 238 ) / 15232

GCD(128, 238) = 30464 / 15232

GCD(128, 238) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 20

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

LCM(2, 20) = 20

GCD(2, 20) = ( 2 x 20 ) / 20

GCD(2, 20) = 40 / 20

GCD(2, 20) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 237

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

LCM(2, 237) = 474

GCD(2, 237) = ( 2 x 237 ) / 474

GCD(2, 237) = 474 / 474

GCD(2, 237) = 1

GCD of 128, 238, 20, 237 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 272, 443, 40, 396
• GCD of 494, 339, 50, 933
• GCD of 103, 114, 39, 161
• GCD of 131, 355, 73, 210
• GCD of 892, 978, 44, 560

1. What is the GCD of 128, 238, 20, 237?

GCD of 128, 238, 20, 237 is 1

2. Where do I get the detailed procedure to find GCD of 128, 238, 20, 237?

You can find a detailed procedure to find GCD of 128, 238, 20, 237 on our page.

3. How to find GCD of 128, 238, 20, 237 on a calculator?

You can find the GCD of 128, 238, 20, 237 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.