GCD of 905, 390, 401, 602 Calculator

Given Input numbers are 905, 390, 401, 602

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

Divisors of 905

List of positive integer divisors of 905 that divides 905 without a remainder.

1, 5, 181, 905

Divisors of 390

List of positive integer divisors of 390 that divides 390 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 401

List of positive integer divisors of 401 that divides 401 without a remainder.

1, 401

Divisors of 602

List of positive integer divisors of 602 that divides 602 without a remainder.

1, 2, 7, 14, 43, 86, 301, 602

Greatest Common Divisior

We found the divisors of 905, 390, 401, 602 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 905, 390, 401, 602 is 1.

Therefore, GCD of numbers 905, 390, 401, 602 is 1

Given Input Data is 905, 390, 401, 602

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

Prime Factorization of 905 is 5 x 181

Prime Factorization of 390 is 2 x 3 x 5 x 13

Prime Factorization of 401 is 401

Prime Factorization of 602 is 2 x 7 x 43

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(905, 390) = 70590

GCD(905, 390) = ( 905 x 390 ) / 70590

GCD(905, 390) = 352950 / 70590

GCD(905, 390) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 401

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

LCM(5, 401) = 2005

GCD(5, 401) = ( 5 x 401 ) / 2005

GCD(5, 401) = 2005 / 2005

GCD(5, 401) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 602

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

LCM(1, 602) = 602

GCD(1, 602) = ( 1 x 602 ) / 602

GCD(1, 602) = 602 / 602

GCD(1, 602) = 1

GCD of 905, 390, 401, 602 is 1

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• GCD of 678, 919, 727, 903
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1. What is the GCD of 905, 390, 401, 602?

GCD of 905, 390, 401, 602 is 1

2. Where do I get the detailed procedure to find GCD of 905, 390, 401, 602?

You can find a detailed procedure to find GCD of 905, 390, 401, 602 on our page.

3. How to find GCD of 905, 390, 401, 602 on a calculator?

You can find the GCD of 905, 390, 401, 602 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.