GCD of 381, 654, 28, 383 Calculator

Given Input numbers are 381, 654, 28, 383

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

Divisors of 381

List of positive integer divisors of 381 that divides 381 without a remainder.

1, 3, 127, 381

Divisors of 654

List of positive integer divisors of 654 that divides 654 without a remainder.

1, 2, 3, 6, 109, 218, 327, 654

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 383

List of positive integer divisors of 383 that divides 383 without a remainder.

1, 383

Greatest Common Divisior

We found the divisors of 381, 654, 28, 383 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 381, 654, 28, 383 is 1.

Therefore, GCD of numbers 381, 654, 28, 383 is 1

Given Input Data is 381, 654, 28, 383

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

Prime Factorization of 381 is 3 x 127

Prime Factorization of 654 is 2 x 3 x 109

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 383 is 383

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(381, 654) = 83058

GCD(381, 654) = ( 381 x 654 ) / 83058

GCD(381, 654) = 249174 / 83058

GCD(381, 654) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 28

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

LCM(3, 28) = 84

GCD(3, 28) = ( 3 x 28 ) / 84

GCD(3, 28) = 84 / 84

GCD(3, 28) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 383

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

LCM(1, 383) = 383

GCD(1, 383) = ( 1 x 383 ) / 383

GCD(1, 383) = 383 / 383

GCD(1, 383) = 1

GCD of 381, 654, 28, 383 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 228, 633, 28, 628
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• GCD of 713, 183, 89, 428

1. What is the GCD of 381, 654, 28, 383?

GCD of 381, 654, 28, 383 is 1

2. Where do I get the detailed procedure to find GCD of 381, 654, 28, 383?

You can find a detailed procedure to find GCD of 381, 654, 28, 383 on our page.

3. How to find GCD of 381, 654, 28, 383 on a calculator?

You can find the GCD of 381, 654, 28, 383 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.