GCD of 18, 2, 10, 90 Calculator

Given Input numbers are 18, 2, 10, 90

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

Divisors of 18

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

1, 2, 3, 6, 9, 18

Divisors of 2

List of positive integer divisors of 2 that divides 2 without a remainder.

1, 2

Divisors of 10

List of positive integer divisors of 10 that divides 10 without a remainder.

1, 2, 5, 10

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

Greatest Common Divisior

We found the divisors of 18, 2, 10, 90 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 18, 2, 10, 90 is 2.

Therefore, GCD of numbers 18, 2, 10, 90 is 2

Given Input Data is 18, 2, 10, 90

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

Prime Factorization of 18 is 2 x 3 x 3

Prime Factorization of 2 is 2

Prime Factorization of 10 is 2 x 5

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

Highest common occurrences in the given inputs are 2¹

Multiplying them we get the GCD as 2

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(18, 2) = 18

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

GCD(18, 2) = 36 / 18

GCD(18, 2) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 10

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

LCM(2, 10) = 10

GCD(2, 10) = ( 2 x 10 ) / 10

GCD(2, 10) = 20 / 10

GCD(2, 10) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 90

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

LCM(2, 90) = 90

GCD(2, 90) = ( 2 x 90 ) / 90

GCD(2, 90) = 180 / 90

GCD(2, 90) = 2

GCD of 18, 2, 10, 90 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 44, 3, 41, 14
• GCD of 63, 4, 51, 36
• GCD of 31, 6, 65, 20
• GCD of 70, 6, 27, 24
• GCD of 87, 5, 14, 14

1. What is the GCD of 18, 2, 10, 90?

GCD of 18, 2, 10, 90 is 2

2. Where do I get the detailed procedure to find GCD of 18, 2, 10, 90?

You can find a detailed procedure to find GCD of 18, 2, 10, 90 on our page.

3. How to find GCD of 18, 2, 10, 90 on a calculator?

You can find the GCD of 18, 2, 10, 90 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.