GCD of 144, 485, 28, 947 Calculator

Given Input numbers are 144, 485, 28, 947

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

Divisors of 144

List of positive integer divisors of 144 that divides 144 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144

Divisors of 485

List of positive integer divisors of 485 that divides 485 without a remainder.

1, 5, 97, 485

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 947

List of positive integer divisors of 947 that divides 947 without a remainder.

1, 947

Greatest Common Divisior

We found the divisors of 144, 485, 28, 947 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 144, 485, 28, 947 is 1.

Therefore, GCD of numbers 144, 485, 28, 947 is 1

Given Input Data is 144, 485, 28, 947

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

Prime Factorization of 144 is 2 x 2 x 2 x 2 x 3 x 3

Prime Factorization of 485 is 5 x 97

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 947 is 947

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(144, 485) = 69840

GCD(144, 485) = ( 144 x 485 ) / 69840

GCD(144, 485) = 69840 / 69840

GCD(144, 485) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 28

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

LCM(1, 28) = 28

GCD(1, 28) = ( 1 x 28 ) / 28

GCD(1, 28) = 28 / 28

GCD(1, 28) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 947

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

LCM(1, 947) = 947

GCD(1, 947) = ( 1 x 947 ) / 947

GCD(1, 947) = 947 / 947

GCD(1, 947) = 1

GCD of 144, 485, 28, 947 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 903, 895, 96, 143
• GCD of 864, 364, 15, 676
• GCD of 373, 715, 42, 977
• GCD of 754, 605, 26, 702
• GCD of 775, 609, 60, 788

1. What is the GCD of 144, 485, 28, 947?

GCD of 144, 485, 28, 947 is 1

2. Where do I get the detailed procedure to find GCD of 144, 485, 28, 947?

You can find a detailed procedure to find GCD of 144, 485, 28, 947 on our page.

3. How to find GCD of 144, 485, 28, 947 on a calculator?

You can find the GCD of 144, 485, 28, 947 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.