GCD of 159, 845, 643 Calculator

Given Input numbers are 159, 845, 643

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

Divisors of 159

List of positive integer divisors of 159 that divides 159 without a remainder.

1, 3, 53, 159

Divisors of 845

List of positive integer divisors of 845 that divides 845 without a remainder.

1, 5, 13, 65, 169, 845

Divisors of 643

List of positive integer divisors of 643 that divides 643 without a remainder.

1, 643

Greatest Common Divisior

We found the divisors of 159, 845, 643 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 159, 845, 643 is 1.

Therefore, GCD of numbers 159, 845, 643 is 1

Given Input Data is 159, 845, 643

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

Prime Factorization of 159 is 3 x 53

Prime Factorization of 845 is 5 x 13 x 13

Prime Factorization of 643 is 643

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(159, 845) = 134355

GCD(159, 845) = ( 159 x 845 ) / 134355

GCD(159, 845) = 134355 / 134355

GCD(159, 845) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 643

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

LCM(1, 643) = 643

GCD(1, 643) = ( 1 x 643 ) / 643

GCD(1, 643) = 643 / 643

GCD(1, 643) = 1

GCD of 159, 845, 643 is 1

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1. What is the GCD of 159, 845, 643?

GCD of 159, 845, 643 is 1

2. Where do I get the detailed procedure to find GCD of 159, 845, 643?

You can find a detailed procedure to find GCD of 159, 845, 643 on our page.

3. How to find GCD of 159, 845, 643 on a calculator?

You can find the GCD of 159, 845, 643 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.