GCD of 805, 628, 638 Calculator

Given Input numbers are 805, 628, 638

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

Divisors of 805

List of positive integer divisors of 805 that divides 805 without a remainder.

1, 5, 7, 23, 35, 115, 161, 805

Divisors of 628

List of positive integer divisors of 628 that divides 628 without a remainder.

1, 2, 4, 157, 314, 628

Divisors of 638

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

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

Greatest Common Divisior

We found the divisors of 805, 628, 638 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 805, 628, 638 is 1.

Therefore, GCD of numbers 805, 628, 638 is 1

Given Input Data is 805, 628, 638

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

Prime Factorization of 805 is 5 x 7 x 23

Prime Factorization of 628 is 2 x 2 x 157

Prime Factorization of 638 is 2 x 11 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(805, 628) = 505540

GCD(805, 628) = ( 805 x 628 ) / 505540

GCD(805, 628) = 505540 / 505540

GCD(805, 628) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 638

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

LCM(1, 638) = 638

GCD(1, 638) = ( 1 x 638 ) / 638

GCD(1, 638) = 638 / 638

GCD(1, 638) = 1

GCD of 805, 628, 638 is 1

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1. What is the GCD of 805, 628, 638?

GCD of 805, 628, 638 is 1

2. Where do I get the detailed procedure to find GCD of 805, 628, 638?

You can find a detailed procedure to find GCD of 805, 628, 638 on our page.

3. How to find GCD of 805, 628, 638 on a calculator?

You can find the GCD of 805, 628, 638 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.