GCD of 639, 823, 120 Calculator

Given Input numbers are 639, 823, 120

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

Divisors of 639

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

1, 3, 9, 71, 213, 639

Divisors of 823

List of positive integer divisors of 823 that divides 823 without a remainder.

1, 823

Divisors of 120

List of positive integer divisors of 120 that divides 120 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

Greatest Common Divisior

We found the divisors of 639, 823, 120 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 639, 823, 120 is 1.

Therefore, GCD of numbers 639, 823, 120 is 1

Given Input Data is 639, 823, 120

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

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 823 is 823

Prime Factorization of 120 is 2 x 2 x 2 x 3 x 5

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(639, 823) = 525897

GCD(639, 823) = ( 639 x 823 ) / 525897

GCD(639, 823) = 525897 / 525897

GCD(639, 823) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 120

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

LCM(1, 120) = 120

GCD(1, 120) = ( 1 x 120 ) / 120

GCD(1, 120) = 120 / 120

GCD(1, 120) = 1

GCD of 639, 823, 120 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 397, 113, 959
• GCD of 122, 613, 284
• GCD of 560, 217, 996
• GCD of 677, 746, 247
• GCD of 536, 218, 613

1. What is the GCD of 639, 823, 120?

GCD of 639, 823, 120 is 1

2. Where do I get the detailed procedure to find GCD of 639, 823, 120?

You can find a detailed procedure to find GCD of 639, 823, 120 on our page.

3. How to find GCD of 639, 823, 120 on a calculator?

You can find the GCD of 639, 823, 120 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.