GCD of 128, 488, 90, 243 Calculator

Given Input numbers are 128, 488, 90, 243

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 488

List of positive integer divisors of 488 that divides 488 without a remainder.

1, 2, 4, 8, 61, 122, 244, 488

Divisors of 90

List of positive integer divisors of 90 that divides 90 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Divisors of 243

List of positive integer divisors of 243 that divides 243 without a remainder.

1, 3, 9, 27, 81, 243

Greatest Common Divisior

We found the divisors of 128, 488, 90, 243 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 128, 488, 90, 243 is 1.

Therefore, GCD of numbers 128, 488, 90, 243 is 1

Given Input Data is 128, 488, 90, 243

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 488 is 2 x 2 x 2 x 61

Prime Factorization of 90 is 2 x 3 x 3 x 5

Prime Factorization of 243 is 3 x 3 x 3 x 3 x 3

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, 488) = 7808

GCD(128, 488) = ( 128 x 488 ) / 7808

GCD(128, 488) = 62464 / 7808

GCD(128, 488) = 8

Step2:

Here we consider the GCD from the above i.e. 8 as first number and the next as 90

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

LCM(8, 90) = 360

GCD(8, 90) = ( 8 x 90 ) / 360

GCD(8, 90) = 720 / 360

GCD(8, 90) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 243

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

LCM(2, 243) = 486

GCD(2, 243) = ( 2 x 243 ) / 486

GCD(2, 243) = 486 / 486

GCD(2, 243) = 1

GCD of 128, 488, 90, 243 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 880, 661, 65, 531
• GCD of 286, 153, 37, 618
• GCD of 110, 614, 14, 736
• GCD of 220, 792, 97, 940
• GCD of 598, 141, 27, 563

1. What is the GCD of 128, 488, 90, 243?

GCD of 128, 488, 90, 243 is 1

2. Where do I get the detailed procedure to find GCD of 128, 488, 90, 243?

You can find a detailed procedure to find GCD of 128, 488, 90, 243 on our page.

3. How to find GCD of 128, 488, 90, 243 on a calculator?

You can find the GCD of 128, 488, 90, 243 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.