GCD of 290, 644, 381, 581 Calculator

Given Input numbers are 290, 644, 381, 581

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

Divisors of 290

List of positive integer divisors of 290 that divides 290 without a remainder.

1, 2, 5, 10, 29, 58, 145, 290

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 381

List of positive integer divisors of 381 that divides 381 without a remainder.

1, 3, 127, 381

Divisors of 581

List of positive integer divisors of 581 that divides 581 without a remainder.

1, 7, 83, 581

Greatest Common Divisior

We found the divisors of 290, 644, 381, 581 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 290, 644, 381, 581 is 1.

Therefore, GCD of numbers 290, 644, 381, 581 is 1

Given Input Data is 290, 644, 381, 581

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

Prime Factorization of 290 is 2 x 5 x 29

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

Prime Factorization of 381 is 3 x 127

Prime Factorization of 581 is 7 x 83

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(290, 644) = 93380

GCD(290, 644) = ( 290 x 644 ) / 93380

GCD(290, 644) = 186760 / 93380

GCD(290, 644) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 381

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

LCM(2, 381) = 762

GCD(2, 381) = ( 2 x 381 ) / 762

GCD(2, 381) = 762 / 762

GCD(2, 381) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 581

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

LCM(1, 581) = 581

GCD(1, 581) = ( 1 x 581 ) / 581

GCD(1, 581) = 581 / 581

GCD(1, 581) = 1

GCD of 290, 644, 381, 581 is 1

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1. What is the GCD of 290, 644, 381, 581?

GCD of 290, 644, 381, 581 is 1

2. Where do I get the detailed procedure to find GCD of 290, 644, 381, 581?

You can find a detailed procedure to find GCD of 290, 644, 381, 581 on our page.

3. How to find GCD of 290, 644, 381, 581 on a calculator?

You can find the GCD of 290, 644, 381, 581 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.