GCD of 641, 720, 872, 545 Calculator

Given Input numbers are 641, 720, 872, 545

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

Divisors of 641

List of positive integer divisors of 641 that divides 641 without a remainder.

1, 641

Divisors of 720

List of positive integer divisors of 720 that divides 720 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

Divisors of 872

List of positive integer divisors of 872 that divides 872 without a remainder.

1, 2, 4, 8, 109, 218, 436, 872

Divisors of 545

List of positive integer divisors of 545 that divides 545 without a remainder.

1, 5, 109, 545

Greatest Common Divisior

We found the divisors of 641, 720, 872, 545 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 641, 720, 872, 545 is 1.

Therefore, GCD of numbers 641, 720, 872, 545 is 1

Given Input Data is 641, 720, 872, 545

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

Prime Factorization of 641 is 641

Prime Factorization of 720 is 2 x 2 x 2 x 2 x 3 x 3 x 5

Prime Factorization of 872 is 2 x 2 x 2 x 109

Prime Factorization of 545 is 5 x 109

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(641, 720) = 461520

GCD(641, 720) = ( 641 x 720 ) / 461520

GCD(641, 720) = 461520 / 461520

GCD(641, 720) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 872

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

LCM(1, 872) = 872

GCD(1, 872) = ( 1 x 872 ) / 872

GCD(1, 872) = 872 / 872

GCD(1, 872) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 545

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

LCM(1, 545) = 545

GCD(1, 545) = ( 1 x 545 ) / 545

GCD(1, 545) = 545 / 545

GCD(1, 545) = 1

GCD of 641, 720, 872, 545 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 671, 846, 458, 631
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• GCD of 529, 894, 750, 119

1. What is the GCD of 641, 720, 872, 545?

GCD of 641, 720, 872, 545 is 1

2. Where do I get the detailed procedure to find GCD of 641, 720, 872, 545?

You can find a detailed procedure to find GCD of 641, 720, 872, 545 on our page.

3. How to find GCD of 641, 720, 872, 545 on a calculator?

You can find the GCD of 641, 720, 872, 545 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.