GCD of 391, 870, 671, 404 Calculator

Given Input numbers are 391, 870, 671, 404

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

Divisors of 391

List of positive integer divisors of 391 that divides 391 without a remainder.

1, 17, 23, 391

Divisors of 870

List of positive integer divisors of 870 that divides 870 without a remainder.

1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870

Divisors of 671

List of positive integer divisors of 671 that divides 671 without a remainder.

1, 11, 61, 671

Divisors of 404

List of positive integer divisors of 404 that divides 404 without a remainder.

1, 2, 4, 101, 202, 404

Greatest Common Divisior

We found the divisors of 391, 870, 671, 404 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 391, 870, 671, 404 is 1.

Therefore, GCD of numbers 391, 870, 671, 404 is 1

Given Input Data is 391, 870, 671, 404

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

Prime Factorization of 391 is 17 x 23

Prime Factorization of 870 is 2 x 3 x 5 x 29

Prime Factorization of 671 is 11 x 61

Prime Factorization of 404 is 2 x 2 x 101

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(391, 870) = 340170

GCD(391, 870) = ( 391 x 870 ) / 340170

GCD(391, 870) = 340170 / 340170

GCD(391, 870) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 671

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

LCM(1, 671) = 671

GCD(1, 671) = ( 1 x 671 ) / 671

GCD(1, 671) = 671 / 671

GCD(1, 671) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 404

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

LCM(1, 404) = 404

GCD(1, 404) = ( 1 x 404 ) / 404

GCD(1, 404) = 404 / 404

GCD(1, 404) = 1

GCD of 391, 870, 671, 404 is 1

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1. What is the GCD of 391, 870, 671, 404?

GCD of 391, 870, 671, 404 is 1

2. Where do I get the detailed procedure to find GCD of 391, 870, 671, 404?

You can find a detailed procedure to find GCD of 391, 870, 671, 404 on our page.

3. How to find GCD of 391, 870, 671, 404 on a calculator?

You can find the GCD of 391, 870, 671, 404 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.