GCD of 18, 840, 465, 811 Calculator

Given Input numbers are 18, 840, 465, 811

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 840

List of positive integer divisors of 840 that divides 840 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 465

List of positive integer divisors of 465 that divides 465 without a remainder.

1, 3, 5, 15, 31, 93, 155, 465

Divisors of 811

List of positive integer divisors of 811 that divides 811 without a remainder.

1, 811

Greatest Common Divisior

We found the divisors of 18, 840, 465, 811 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 18, 840, 465, 811 is 1.

Therefore, GCD of numbers 18, 840, 465, 811 is 1

Given Input Data is 18, 840, 465, 811

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 840 is 2 x 2 x 2 x 3 x 5 x 7

Prime Factorization of 465 is 3 x 5 x 31

Prime Factorization of 811 is 811

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(18, 840) = 2520

GCD(18, 840) = ( 18 x 840 ) / 2520

GCD(18, 840) = 15120 / 2520

GCD(18, 840) = 6

Step2:

Here we consider the GCD from the above i.e. 6 as first number and the next as 465

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

LCM(6, 465) = 930

GCD(6, 465) = ( 6 x 465 ) / 930

GCD(6, 465) = 2790 / 930

GCD(6, 465) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 811

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

LCM(3, 811) = 2433

GCD(3, 811) = ( 3 x 811 ) / 2433

GCD(3, 811) = 2433 / 2433

GCD(3, 811) = 1

GCD of 18, 840, 465, 811 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 92, 791, 574, 866
• GCD of 65, 301, 110, 912
• GCD of 77, 414, 967, 427
• GCD of 25, 750, 219, 609
• GCD of 71, 802, 331, 926

1. What is the GCD of 18, 840, 465, 811?

GCD of 18, 840, 465, 811 is 1

2. Where do I get the detailed procedure to find GCD of 18, 840, 465, 811?

You can find a detailed procedure to find GCD of 18, 840, 465, 811 on our page.

3. How to find GCD of 18, 840, 465, 811 on a calculator?

You can find the GCD of 18, 840, 465, 811 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.