GCD of 75, 20, 43 Calculator

Given Input numbers are 75, 20, 43

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

Divisors of 75

List of positive integer divisors of 75 that divides 75 without a remainder.

1, 3, 5, 15, 25, 75

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 43

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

1, 43

Greatest Common Divisior

We found the divisors of 75, 20, 43 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 75, 20, 43 is 1.

Therefore, GCD of numbers 75, 20, 43 is 1

Given Input Data is 75, 20, 43

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

Prime Factorization of 75 is 3 x 5 x 5

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 43 is 43

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(75, 20) = 300

GCD(75, 20) = ( 75 x 20 ) / 300

GCD(75, 20) = 1500 / 300

GCD(75, 20) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 43

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

LCM(5, 43) = 215

GCD(5, 43) = ( 5 x 43 ) / 215

GCD(5, 43) = 215 / 215

GCD(5, 43) = 1

GCD of 75, 20, 43 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 37, 11, 87
• GCD of 93, 33, 90
• GCD of 86, 88, 63
• GCD of 61, 71, 17
• GCD of 12, 23, 51

1. What is the GCD of 75, 20, 43?

GCD of 75, 20, 43 is 1

2. Where do I get the detailed procedure to find GCD of 75, 20, 43?

You can find a detailed procedure to find GCD of 75, 20, 43 on our page.

3. How to find GCD of 75, 20, 43 on a calculator?

You can find the GCD of 75, 20, 43 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.