GCD of 438, 391, 52, 261 Calculator

Given Input numbers are 438, 391, 52, 261

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

Divisors of 438

List of positive integer divisors of 438 that divides 438 without a remainder.

1, 2, 3, 6, 73, 146, 219, 438

Divisors of 391

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

1, 17, 23, 391

Divisors of 52

List of positive integer divisors of 52 that divides 52 without a remainder.

1, 2, 4, 13, 26, 52

Divisors of 261

List of positive integer divisors of 261 that divides 261 without a remainder.

1, 3, 9, 29, 87, 261

Greatest Common Divisior

We found the divisors of 438, 391, 52, 261 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 438, 391, 52, 261 is 1.

Therefore, GCD of numbers 438, 391, 52, 261 is 1

Given Input Data is 438, 391, 52, 261

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

Prime Factorization of 438 is 2 x 3 x 73

Prime Factorization of 391 is 17 x 23

Prime Factorization of 52 is 2 x 2 x 13

Prime Factorization of 261 is 3 x 3 x 29

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(438, 391) = 171258

GCD(438, 391) = ( 438 x 391 ) / 171258

GCD(438, 391) = 171258 / 171258

GCD(438, 391) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 52

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

LCM(1, 52) = 52

GCD(1, 52) = ( 1 x 52 ) / 52

GCD(1, 52) = 52 / 52

GCD(1, 52) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 261

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

LCM(1, 261) = 261

GCD(1, 261) = ( 1 x 261 ) / 261

GCD(1, 261) = 261 / 261

GCD(1, 261) = 1

GCD of 438, 391, 52, 261 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 911, 518, 71, 563
• GCD of 611, 469, 43, 706
• GCD of 357, 218, 45, 454
• GCD of 871, 820, 12, 646
• GCD of 168, 488, 12, 286

1. What is the GCD of 438, 391, 52, 261?

GCD of 438, 391, 52, 261 is 1

2. Where do I get the detailed procedure to find GCD of 438, 391, 52, 261?

You can find a detailed procedure to find GCD of 438, 391, 52, 261 on our page.

3. How to find GCD of 438, 391, 52, 261 on a calculator?

You can find the GCD of 438, 391, 52, 261 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.