GCD of 27, 49, 42 Calculator

Given Input numbers are 27, 49, 42

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

Divisors of 27

List of positive integer divisors of 27 that divides 27 without a remainder.

1, 3, 9, 27

Divisors of 49

List of positive integer divisors of 49 that divides 49 without a remainder.

1, 7, 49

Divisors of 42

List of positive integer divisors of 42 that divides 42 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42

Greatest Common Divisior

We found the divisors of 27, 49, 42 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 27, 49, 42 is 1.

Therefore, GCD of numbers 27, 49, 42 is 1

Given Input Data is 27, 49, 42

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

Prime Factorization of 27 is 3 x 3 x 3

Prime Factorization of 49 is 7 x 7

Prime Factorization of 42 is 2 x 3 x 7

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(27, 49) = 1323

GCD(27, 49) = ( 27 x 49 ) / 1323

GCD(27, 49) = 1323 / 1323

GCD(27, 49) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 42

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

LCM(1, 42) = 42

GCD(1, 42) = ( 1 x 42 ) / 42

GCD(1, 42) = 42 / 42

GCD(1, 42) = 1

GCD of 27, 49, 42 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 10, 66, 63
• GCD of 54, 60, 94
• GCD of 39, 49, 34
• GCD of 41, 52, 40
• GCD of 48, 86, 87

1. What is the GCD of 27, 49, 42?

GCD of 27, 49, 42 is 1

2. Where do I get the detailed procedure to find GCD of 27, 49, 42?

You can find a detailed procedure to find GCD of 27, 49, 42 on our page.

3. How to find GCD of 27, 49, 42 on a calculator?

You can find the GCD of 27, 49, 42 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.