GCD of 638, 478, 552, 275 Calculator

Given Input numbers are 638, 478, 552, 275

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

Divisors of 638

List of positive integer divisors of 638 that divides 638 without a remainder.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 478

List of positive integer divisors of 478 that divides 478 without a remainder.

1, 2, 239, 478

Divisors of 552

List of positive integer divisors of 552 that divides 552 without a remainder.

1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 138, 184, 276, 552

Divisors of 275

List of positive integer divisors of 275 that divides 275 without a remainder.

1, 5, 11, 25, 55, 275

Greatest Common Divisior

We found the divisors of 638, 478, 552, 275 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 638, 478, 552, 275 is 1.

Therefore, GCD of numbers 638, 478, 552, 275 is 1

Given Input Data is 638, 478, 552, 275

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

Prime Factorization of 638 is 2 x 11 x 29

Prime Factorization of 478 is 2 x 239

Prime Factorization of 552 is 2 x 2 x 2 x 3 x 23

Prime Factorization of 275 is 5 x 5 x 11

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(638, 478) = 152482

GCD(638, 478) = ( 638 x 478 ) / 152482

GCD(638, 478) = 304964 / 152482

GCD(638, 478) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 552

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

LCM(2, 552) = 552

GCD(2, 552) = ( 2 x 552 ) / 552

GCD(2, 552) = 1104 / 552

GCD(2, 552) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 275

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

LCM(2, 275) = 550

GCD(2, 275) = ( 2 x 275 ) / 550

GCD(2, 275) = 550 / 550

GCD(2, 275) = 1

GCD of 638, 478, 552, 275 is 1

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1. What is the GCD of 638, 478, 552, 275?

GCD of 638, 478, 552, 275 is 1

2. Where do I get the detailed procedure to find GCD of 638, 478, 552, 275?

You can find a detailed procedure to find GCD of 638, 478, 552, 275 on our page.

3. How to find GCD of 638, 478, 552, 275 on a calculator?

You can find the GCD of 638, 478, 552, 275 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.