GCD of 68, 449, 478, 821 Calculator

Given Input numbers are 68, 449, 478, 821

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

Divisors of 68

List of positive integer divisors of 68 that divides 68 without a remainder.

1, 2, 4, 17, 34, 68

Divisors of 449

List of positive integer divisors of 449 that divides 449 without a remainder.

1, 449

Divisors of 478

List of positive integer divisors of 478 that divides 478 without a remainder.

1, 2, 239, 478

Divisors of 821

List of positive integer divisors of 821 that divides 821 without a remainder.

1, 821

Greatest Common Divisior

We found the divisors of 68, 449, 478, 821 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 68, 449, 478, 821 is 1.

Therefore, GCD of numbers 68, 449, 478, 821 is 1

Given Input Data is 68, 449, 478, 821

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

Prime Factorization of 68 is 2 x 2 x 17

Prime Factorization of 449 is 449

Prime Factorization of 478 is 2 x 239

Prime Factorization of 821 is 821

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(68, 449) = 30532

GCD(68, 449) = ( 68 x 449 ) / 30532

GCD(68, 449) = 30532 / 30532

GCD(68, 449) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 478

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

LCM(1, 478) = 478

GCD(1, 478) = ( 1 x 478 ) / 478

GCD(1, 478) = 478 / 478

GCD(1, 478) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 821

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

LCM(1, 821) = 821

GCD(1, 821) = ( 1 x 821 ) / 821

GCD(1, 821) = 821 / 821

GCD(1, 821) = 1

GCD of 68, 449, 478, 821 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 92, 744, 641, 278
• GCD of 67, 558, 770, 390
• GCD of 37, 324, 717, 791
• GCD of 33, 954, 956, 986
• GCD of 40, 406, 134, 252

1. What is the GCD of 68, 449, 478, 821?

GCD of 68, 449, 478, 821 is 1

2. Where do I get the detailed procedure to find GCD of 68, 449, 478, 821?

You can find a detailed procedure to find GCD of 68, 449, 478, 821 on our page.

3. How to find GCD of 68, 449, 478, 821 on a calculator?

You can find the GCD of 68, 449, 478, 821 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.