GCD of 391, 880, 30 Calculator

Given Input numbers are 391, 880, 30

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 880

List of positive integer divisors of 880 that divides 880 without a remainder.

1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880

Divisors of 30

List of positive integer divisors of 30 that divides 30 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30

Greatest Common Divisior

We found the divisors of 391, 880, 30 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 391, 880, 30 is 1.

Therefore, GCD of numbers 391, 880, 30 is 1

Given Input Data is 391, 880, 30

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

Prime Factorization of 391 is 17 x 23

Prime Factorization of 880 is 2 x 2 x 2 x 2 x 5 x 11

Prime Factorization of 30 is 2 x 3 x 5

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, 880) = 344080

GCD(391, 880) = ( 391 x 880 ) / 344080

GCD(391, 880) = 344080 / 344080

GCD(391, 880) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 30

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

LCM(1, 30) = 30

GCD(1, 30) = ( 1 x 30 ) / 30

GCD(1, 30) = 30 / 30

GCD(1, 30) = 1

GCD of 391, 880, 30 is 1

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1. What is the GCD of 391, 880, 30?

GCD of 391, 880, 30 is 1

2. Where do I get the detailed procedure to find GCD of 391, 880, 30?

You can find a detailed procedure to find GCD of 391, 880, 30 on our page.

3. How to find GCD of 391, 880, 30 on a calculator?

You can find the GCD of 391, 880, 30 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.