GCD of 645, 940, 59, 397 Calculator

Given Input numbers are 645, 940, 59, 397

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

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 940

List of positive integer divisors of 940 that divides 940 without a remainder.

1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940

Divisors of 59

List of positive integer divisors of 59 that divides 59 without a remainder.

1, 59

Divisors of 397

List of positive integer divisors of 397 that divides 397 without a remainder.

1, 397

Greatest Common Divisior

We found the divisors of 645, 940, 59, 397 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 645, 940, 59, 397 is 1.

Therefore, GCD of numbers 645, 940, 59, 397 is 1

Given Input Data is 645, 940, 59, 397

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

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 940 is 2 x 2 x 5 x 47

Prime Factorization of 59 is 59

Prime Factorization of 397 is 397

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(645, 940) = 121260

GCD(645, 940) = ( 645 x 940 ) / 121260

GCD(645, 940) = 606300 / 121260

GCD(645, 940) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 59

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

LCM(5, 59) = 295

GCD(5, 59) = ( 5 x 59 ) / 295

GCD(5, 59) = 295 / 295

GCD(5, 59) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 397

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

LCM(1, 397) = 397

GCD(1, 397) = ( 1 x 397 ) / 397

GCD(1, 397) = 397 / 397

GCD(1, 397) = 1

GCD of 645, 940, 59, 397 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 229, 310, 83, 571
• GCD of 403, 432, 58, 642
• GCD of 961, 769, 49, 450
• GCD of 779, 476, 10, 146
• GCD of 155, 876, 81, 520

1. What is the GCD of 645, 940, 59, 397?

GCD of 645, 940, 59, 397 is 1

2. Where do I get the detailed procedure to find GCD of 645, 940, 59, 397?

You can find a detailed procedure to find GCD of 645, 940, 59, 397 on our page.

3. How to find GCD of 645, 940, 59, 397 on a calculator?

You can find the GCD of 645, 940, 59, 397 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.