GCD of 107, 645, 73, 390 Calculator

Given Input numbers are 107, 645, 73, 390

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

Divisors of 107

List of positive integer divisors of 107 that divides 107 without a remainder.

1, 107

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 73

List of positive integer divisors of 73 that divides 73 without a remainder.

1, 73

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

Greatest Common Divisior

We found the divisors of 107, 645, 73, 390 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 107, 645, 73, 390 is 1.

Therefore, GCD of numbers 107, 645, 73, 390 is 1

Given Input Data is 107, 645, 73, 390

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

Prime Factorization of 107 is 107

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 73 is 73

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

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(107, 645) = 69015

GCD(107, 645) = ( 107 x 645 ) / 69015

GCD(107, 645) = 69015 / 69015

GCD(107, 645) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 73

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

LCM(1, 73) = 73

GCD(1, 73) = ( 1 x 73 ) / 73

GCD(1, 73) = 73 / 73

GCD(1, 73) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 390

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

LCM(1, 390) = 390

GCD(1, 390) = ( 1 x 390 ) / 390

GCD(1, 390) = 390 / 390

GCD(1, 390) = 1

GCD of 107, 645, 73, 390 is 1

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• GCD of 166, 187, 26, 674
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• GCD of 405, 348, 26, 506

1. What is the GCD of 107, 645, 73, 390?

GCD of 107, 645, 73, 390 is 1

2. Where do I get the detailed procedure to find GCD of 107, 645, 73, 390?

You can find a detailed procedure to find GCD of 107, 645, 73, 390 on our page.

3. How to find GCD of 107, 645, 73, 390 on a calculator?

You can find the GCD of 107, 645, 73, 390 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.