GCD of 646, 213, 129, 744 Calculator

Given Input numbers are 646, 213, 129, 744

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

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 213

List of positive integer divisors of 213 that divides 213 without a remainder.

1, 3, 71, 213

Divisors of 129

List of positive integer divisors of 129 that divides 129 without a remainder.

1, 3, 43, 129

Divisors of 744

List of positive integer divisors of 744 that divides 744 without a remainder.

1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744

Greatest Common Divisior

We found the divisors of 646, 213, 129, 744 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 646, 213, 129, 744 is 1.

Therefore, GCD of numbers 646, 213, 129, 744 is 1

Given Input Data is 646, 213, 129, 744

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

Prime Factorization of 646 is 2 x 17 x 19

Prime Factorization of 213 is 3 x 71

Prime Factorization of 129 is 3 x 43

Prime Factorization of 744 is 2 x 2 x 2 x 3 x 31

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(646, 213) = 137598

GCD(646, 213) = ( 646 x 213 ) / 137598

GCD(646, 213) = 137598 / 137598

GCD(646, 213) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 129

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

LCM(1, 129) = 129

GCD(1, 129) = ( 1 x 129 ) / 129

GCD(1, 129) = 129 / 129

GCD(1, 129) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 744

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

LCM(1, 744) = 744

GCD(1, 744) = ( 1 x 744 ) / 744

GCD(1, 744) = 744 / 744

GCD(1, 744) = 1

GCD of 646, 213, 129, 744 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 831, 895, 605, 536
• GCD of 311, 144, 615, 136
• GCD of 926, 854, 765, 733
• GCD of 744, 151, 201, 785
• GCD of 276, 427, 388, 867

1. What is the GCD of 646, 213, 129, 744?

GCD of 646, 213, 129, 744 is 1

2. Where do I get the detailed procedure to find GCD of 646, 213, 129, 744?

You can find a detailed procedure to find GCD of 646, 213, 129, 744 on our page.

3. How to find GCD of 646, 213, 129, 744 on a calculator?

You can find the GCD of 646, 213, 129, 744 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.