GCD of 115, 434, 63, 638 Calculator

Given Input numbers are 115, 434, 63, 638

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

Divisors of 115

List of positive integer divisors of 115 that divides 115 without a remainder.

1, 5, 23, 115

Divisors of 434

List of positive integer divisors of 434 that divides 434 without a remainder.

1, 2, 7, 14, 31, 62, 217, 434

Divisors of 63

List of positive integer divisors of 63 that divides 63 without a remainder.

1, 3, 7, 9, 21, 63

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 115, 434, 63, 638 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 115, 434, 63, 638 is 1.

Therefore, GCD of numbers 115, 434, 63, 638 is 1

Given Input Data is 115, 434, 63, 638

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

Prime Factorization of 115 is 5 x 23

Prime Factorization of 434 is 2 x 7 x 31

Prime Factorization of 63 is 3 x 3 x 7

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(115, 434) = 49910

GCD(115, 434) = ( 115 x 434 ) / 49910

GCD(115, 434) = 49910 / 49910

GCD(115, 434) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 63

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

LCM(1, 63) = 63

GCD(1, 63) = ( 1 x 63 ) / 63

GCD(1, 63) = 63 / 63

GCD(1, 63) = 1

Step3:

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 115, 434, 63, 638 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 838, 221, 91, 384
• GCD of 313, 901, 29, 197
• GCD of 262, 590, 82, 678
• GCD of 776, 769, 13, 131
• GCD of 330, 753, 24, 639

1. What is the GCD of 115, 434, 63, 638?

GCD of 115, 434, 63, 638 is 1

2. Where do I get the detailed procedure to find GCD of 115, 434, 63, 638?

You can find a detailed procedure to find GCD of 115, 434, 63, 638 on our page.

3. How to find GCD of 115, 434, 63, 638 on a calculator?

You can find the GCD of 115, 434, 63, 638 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.