GCD of 817, 278, 342, 392 Calculator

Given Input numbers are 817, 278, 342, 392

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

Divisors of 817

List of positive integer divisors of 817 that divides 817 without a remainder.

1, 19, 43, 817

Divisors of 278

List of positive integer divisors of 278 that divides 278 without a remainder.

1, 2, 139, 278

Divisors of 342

List of positive integer divisors of 342 that divides 342 without a remainder.

1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342

Divisors of 392

List of positive integer divisors of 392 that divides 392 without a remainder.

1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392

Greatest Common Divisior

We found the divisors of 817, 278, 342, 392 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 817, 278, 342, 392 is 1.

Therefore, GCD of numbers 817, 278, 342, 392 is 1

Given Input Data is 817, 278, 342, 392

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

Prime Factorization of 817 is 19 x 43

Prime Factorization of 278 is 2 x 139

Prime Factorization of 342 is 2 x 3 x 3 x 19

Prime Factorization of 392 is 2 x 2 x 2 x 7 x 7

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(817, 278) = 227126

GCD(817, 278) = ( 817 x 278 ) / 227126

GCD(817, 278) = 227126 / 227126

GCD(817, 278) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 342

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

LCM(1, 342) = 342

GCD(1, 342) = ( 1 x 342 ) / 342

GCD(1, 342) = 342 / 342

GCD(1, 342) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 392

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

LCM(1, 392) = 392

GCD(1, 392) = ( 1 x 392 ) / 392

GCD(1, 392) = 392 / 392

GCD(1, 392) = 1

GCD of 817, 278, 342, 392 is 1

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• GCD of 931, 633, 540, 843
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1. What is the GCD of 817, 278, 342, 392?

GCD of 817, 278, 342, 392 is 1

2. Where do I get the detailed procedure to find GCD of 817, 278, 342, 392?

You can find a detailed procedure to find GCD of 817, 278, 342, 392 on our page.

3. How to find GCD of 817, 278, 342, 392 on a calculator?

You can find the GCD of 817, 278, 342, 392 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.