GCD of 721, 869, 129, 343 Calculator

Given Input numbers are 721, 869, 129, 343

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

Divisors of 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

Divisors of 869

List of positive integer divisors of 869 that divides 869 without a remainder.

1, 11, 79, 869

Divisors of 129

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

1, 3, 43, 129

Divisors of 343

List of positive integer divisors of 343 that divides 343 without a remainder.

1, 7, 49, 343

Greatest Common Divisior

We found the divisors of 721, 869, 129, 343 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 721, 869, 129, 343 is 1.

Therefore, GCD of numbers 721, 869, 129, 343 is 1

Given Input Data is 721, 869, 129, 343

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

Prime Factorization of 721 is 7 x 103

Prime Factorization of 869 is 11 x 79

Prime Factorization of 129 is 3 x 43

Prime Factorization of 343 is 7 x 7 x 7

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(721, 869) = 626549

GCD(721, 869) = ( 721 x 869 ) / 626549

GCD(721, 869) = 626549 / 626549

GCD(721, 869) = 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 343

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

LCM(1, 343) = 343

GCD(1, 343) = ( 1 x 343 ) / 343

GCD(1, 343) = 343 / 343

GCD(1, 343) = 1

GCD of 721, 869, 129, 343 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 695, 717, 926, 183
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• GCD of 192, 535, 911, 810

1. What is the GCD of 721, 869, 129, 343?

GCD of 721, 869, 129, 343 is 1

2. Where do I get the detailed procedure to find GCD of 721, 869, 129, 343?

You can find a detailed procedure to find GCD of 721, 869, 129, 343 on our page.

3. How to find GCD of 721, 869, 129, 343 on a calculator?

You can find the GCD of 721, 869, 129, 343 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.