GCD of 18, 399, 419, 779 Calculator

Given Input numbers are 18, 399, 419, 779

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 399

List of positive integer divisors of 399 that divides 399 without a remainder.

1, 3, 7, 19, 21, 57, 133, 399

Divisors of 419

List of positive integer divisors of 419 that divides 419 without a remainder.

1, 419

Divisors of 779

List of positive integer divisors of 779 that divides 779 without a remainder.

1, 19, 41, 779

Greatest Common Divisior

We found the divisors of 18, 399, 419, 779 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 18, 399, 419, 779 is 1.

Therefore, GCD of numbers 18, 399, 419, 779 is 1

Given Input Data is 18, 399, 419, 779

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 399 is 3 x 7 x 19

Prime Factorization of 419 is 419

Prime Factorization of 779 is 19 x 41

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, 399) = 2394

GCD(18, 399) = ( 18 x 399 ) / 2394

GCD(18, 399) = 7182 / 2394

GCD(18, 399) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 419

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

LCM(3, 419) = 1257

GCD(3, 419) = ( 3 x 419 ) / 1257

GCD(3, 419) = 1257 / 1257

GCD(3, 419) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 779

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

LCM(1, 779) = 779

GCD(1, 779) = ( 1 x 779 ) / 779

GCD(1, 779) = 779 / 779

GCD(1, 779) = 1

GCD of 18, 399, 419, 779 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 28, 309, 847, 183
• GCD of 41, 937, 689, 662
• GCD of 64, 303, 282, 500
• GCD of 64, 407, 176, 914
• GCD of 30, 350, 904, 189

1. What is the GCD of 18, 399, 419, 779?

GCD of 18, 399, 419, 779 is 1

2. Where do I get the detailed procedure to find GCD of 18, 399, 419, 779?

You can find a detailed procedure to find GCD of 18, 399, 419, 779 on our page.

3. How to find GCD of 18, 399, 419, 779 on a calculator?

You can find the GCD of 18, 399, 419, 779 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.