GCD of 438, 890, 18, 963 Calculator

Given Input numbers are 438, 890, 18, 963

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

Divisors of 438

List of positive integer divisors of 438 that divides 438 without a remainder.

1, 2, 3, 6, 73, 146, 219, 438

Divisors of 890

List of positive integer divisors of 890 that divides 890 without a remainder.

1, 2, 5, 10, 89, 178, 445, 890

Divisors of 18

List of positive integer divisors of 18 that divides 18 without a remainder.

1, 2, 3, 6, 9, 18

Divisors of 963

List of positive integer divisors of 963 that divides 963 without a remainder.

1, 3, 9, 107, 321, 963

Greatest Common Divisior

We found the divisors of 438, 890, 18, 963 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 438, 890, 18, 963 is 1.

Therefore, GCD of numbers 438, 890, 18, 963 is 1

Given Input Data is 438, 890, 18, 963

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

Prime Factorization of 438 is 2 x 3 x 73

Prime Factorization of 890 is 2 x 5 x 89

Prime Factorization of 18 is 2 x 3 x 3

Prime Factorization of 963 is 3 x 3 x 107

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(438, 890) = 194910

GCD(438, 890) = ( 438 x 890 ) / 194910

GCD(438, 890) = 389820 / 194910

GCD(438, 890) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 18

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

LCM(2, 18) = 18

GCD(2, 18) = ( 2 x 18 ) / 18

GCD(2, 18) = 36 / 18

GCD(2, 18) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 963

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

LCM(2, 963) = 1926

GCD(2, 963) = ( 2 x 963 ) / 1926

GCD(2, 963) = 1926 / 1926

GCD(2, 963) = 1

GCD of 438, 890, 18, 963 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 664, 139, 26, 540
• GCD of 705, 255, 59, 758
• GCD of 531, 958, 34, 673
• GCD of 736, 288, 14, 746
• GCD of 445, 423, 91, 853

1. What is the GCD of 438, 890, 18, 963?

GCD of 438, 890, 18, 963 is 1

2. Where do I get the detailed procedure to find GCD of 438, 890, 18, 963?

You can find a detailed procedure to find GCD of 438, 890, 18, 963 on our page.

3. How to find GCD of 438, 890, 18, 963 on a calculator?

You can find the GCD of 438, 890, 18, 963 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.