GCD of 647, 129, 145, 723 Calculator

Given Input numbers are 647, 129, 145, 723

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

Divisors of 647

List of positive integer divisors of 647 that divides 647 without a remainder.

1, 647

Divisors of 129

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

1, 3, 43, 129

Divisors of 145

List of positive integer divisors of 145 that divides 145 without a remainder.

1, 5, 29, 145

Divisors of 723

List of positive integer divisors of 723 that divides 723 without a remainder.

1, 3, 241, 723

Greatest Common Divisior

We found the divisors of 647, 129, 145, 723 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 647, 129, 145, 723 is 1.

Therefore, GCD of numbers 647, 129, 145, 723 is 1

Given Input Data is 647, 129, 145, 723

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

Prime Factorization of 647 is 647

Prime Factorization of 129 is 3 x 43

Prime Factorization of 145 is 5 x 29

Prime Factorization of 723 is 3 x 241

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(647, 129) = 83463

GCD(647, 129) = ( 647 x 129 ) / 83463

GCD(647, 129) = 83463 / 83463

GCD(647, 129) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 145

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

LCM(1, 145) = 145

GCD(1, 145) = ( 1 x 145 ) / 145

GCD(1, 145) = 145 / 145

GCD(1, 145) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 723

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

LCM(1, 723) = 723

GCD(1, 723) = ( 1 x 723 ) / 723

GCD(1, 723) = 723 / 723

GCD(1, 723) = 1

GCD of 647, 129, 145, 723 is 1

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• GCD of 717, 183, 646, 400
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1. What is the GCD of 647, 129, 145, 723?

GCD of 647, 129, 145, 723 is 1

2. Where do I get the detailed procedure to find GCD of 647, 129, 145, 723?

You can find a detailed procedure to find GCD of 647, 129, 145, 723 on our page.

3. How to find GCD of 647, 129, 145, 723 on a calculator?

You can find the GCD of 647, 129, 145, 723 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.