GCD of 73, 143, 642, 856 Calculator

Given Input numbers are 73, 143, 642, 856

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

Divisors of 73

List of positive integer divisors of 73 that divides 73 without a remainder.

1, 73

Divisors of 143

List of positive integer divisors of 143 that divides 143 without a remainder.

1, 11, 13, 143

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 856

List of positive integer divisors of 856 that divides 856 without a remainder.

1, 2, 4, 8, 107, 214, 428, 856

Greatest Common Divisior

We found the divisors of 73, 143, 642, 856 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 73, 143, 642, 856 is 1.

Therefore, GCD of numbers 73, 143, 642, 856 is 1

Given Input Data is 73, 143, 642, 856

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

Prime Factorization of 73 is 73

Prime Factorization of 143 is 11 x 13

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 856 is 2 x 2 x 2 x 107

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(73, 143) = 10439

GCD(73, 143) = ( 73 x 143 ) / 10439

GCD(73, 143) = 10439 / 10439

GCD(73, 143) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 642

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

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

GCD(1, 642) = 642 / 642

GCD(1, 642) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 856

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

LCM(1, 856) = 856

GCD(1, 856) = ( 1 x 856 ) / 856

GCD(1, 856) = 856 / 856

GCD(1, 856) = 1

GCD of 73, 143, 642, 856 is 1

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1. What is the GCD of 73, 143, 642, 856?

GCD of 73, 143, 642, 856 is 1

2. Where do I get the detailed procedure to find GCD of 73, 143, 642, 856?

You can find a detailed procedure to find GCD of 73, 143, 642, 856 on our page.

3. How to find GCD of 73, 143, 642, 856 on a calculator?

You can find the GCD of 73, 143, 642, 856 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.