GCD of 644, 331, 34, 261 Calculator

Given Input numbers are 644, 331, 34, 261

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

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 331

List of positive integer divisors of 331 that divides 331 without a remainder.

1, 331

Divisors of 34

List of positive integer divisors of 34 that divides 34 without a remainder.

1, 2, 17, 34

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 644, 331, 34, 261 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 644, 331, 34, 261 is 1.

Therefore, GCD of numbers 644, 331, 34, 261 is 1

Given Input Data is 644, 331, 34, 261

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

Prime Factorization of 644 is 2 x 2 x 7 x 23

Prime Factorization of 331 is 331

Prime Factorization of 34 is 2 x 17

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(644, 331) = 213164

GCD(644, 331) = ( 644 x 331 ) / 213164

GCD(644, 331) = 213164 / 213164

GCD(644, 331) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 34

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

LCM(1, 34) = 34

GCD(1, 34) = ( 1 x 34 ) / 34

GCD(1, 34) = 34 / 34

GCD(1, 34) = 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 644, 331, 34, 261 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 105, 954, 54, 600
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• GCD of 373, 130, 11, 143
• GCD of 175, 580, 39, 375
• GCD of 767, 589, 41, 622

1. What is the GCD of 644, 331, 34, 261?

GCD of 644, 331, 34, 261 is 1

2. Where do I get the detailed procedure to find GCD of 644, 331, 34, 261?

You can find a detailed procedure to find GCD of 644, 331, 34, 261 on our page.

3. How to find GCD of 644, 331, 34, 261 on a calculator?

You can find the GCD of 644, 331, 34, 261 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.