GCD of 627, 639, 15, 517 Calculator

Given Input numbers are 627, 639, 15, 517

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

Divisors of 627

List of positive integer divisors of 627 that divides 627 without a remainder.

1, 3, 11, 19, 33, 57, 209, 627

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

Divisors of 517

List of positive integer divisors of 517 that divides 517 without a remainder.

1, 11, 47, 517

Greatest Common Divisior

We found the divisors of 627, 639, 15, 517 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 627, 639, 15, 517 is 1.

Therefore, GCD of numbers 627, 639, 15, 517 is 1

Given Input Data is 627, 639, 15, 517

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

Prime Factorization of 627 is 3 x 11 x 19

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 15 is 3 x 5

Prime Factorization of 517 is 11 x 47

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(627, 639) = 133551

GCD(627, 639) = ( 627 x 639 ) / 133551

GCD(627, 639) = 400653 / 133551

GCD(627, 639) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 15

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

LCM(3, 15) = 15

GCD(3, 15) = ( 3 x 15 ) / 15

GCD(3, 15) = 45 / 15

GCD(3, 15) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 517

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

LCM(3, 517) = 1551

GCD(3, 517) = ( 3 x 517 ) / 1551

GCD(3, 517) = 1551 / 1551

GCD(3, 517) = 1

GCD of 627, 639, 15, 517 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 144, 440, 29, 962
• GCD of 100, 988, 21, 218
• GCD of 216, 147, 22, 386
• GCD of 313, 736, 81, 206
• GCD of 343, 483, 85, 890

1. What is the GCD of 627, 639, 15, 517?

GCD of 627, 639, 15, 517 is 1

2. Where do I get the detailed procedure to find GCD of 627, 639, 15, 517?

You can find a detailed procedure to find GCD of 627, 639, 15, 517 on our page.

3. How to find GCD of 627, 639, 15, 517 on a calculator?

You can find the GCD of 627, 639, 15, 517 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.