GCD of 43, 47, 21, 73 Calculator

Given Input numbers are 43, 47, 21, 73

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

Divisors of 43

List of positive integer divisors of 43 that divides 43 without a remainder.

1, 43

Divisors of 47

List of positive integer divisors of 47 that divides 47 without a remainder.

1, 47

Divisors of 21

List of positive integer divisors of 21 that divides 21 without a remainder.

1, 3, 7, 21

Divisors of 73

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

1, 73

Greatest Common Divisior

We found the divisors of 43, 47, 21, 73 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 43, 47, 21, 73 is 1.

Therefore, GCD of numbers 43, 47, 21, 73 is 1

Given Input Data is 43, 47, 21, 73

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

Prime Factorization of 43 is 43

Prime Factorization of 47 is 47

Prime Factorization of 21 is 3 x 7

Prime Factorization of 73 is 73

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(43, 47) = 2021

GCD(43, 47) = ( 43 x 47 ) / 2021

GCD(43, 47) = 2021 / 2021

GCD(43, 47) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 21

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

LCM(1, 21) = 21

GCD(1, 21) = ( 1 x 21 ) / 21

GCD(1, 21) = 21 / 21

GCD(1, 21) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 73

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

LCM(1, 73) = 73

GCD(1, 73) = ( 1 x 73 ) / 73

GCD(1, 73) = 73 / 73

GCD(1, 73) = 1

GCD of 43, 47, 21, 73 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 31, 84, 65, 37
• GCD of 24, 55, 88, 87
• GCD of 34, 94, 31, 15
• GCD of 10, 54, 80, 47
• GCD of 19, 97, 89, 73

1. What is the GCD of 43, 47, 21, 73?

GCD of 43, 47, 21, 73 is 1

2. Where do I get the detailed procedure to find GCD of 43, 47, 21, 73?

You can find a detailed procedure to find GCD of 43, 47, 21, 73 on our page.

3. How to find GCD of 43, 47, 21, 73 on a calculator?

You can find the GCD of 43, 47, 21, 73 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.