GCD of 138, 815, 942 Calculator

Given Input numbers are 138, 815, 942

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

Divisors of 138

List of positive integer divisors of 138 that divides 138 without a remainder.

1, 2, 3, 6, 23, 46, 69, 138

Divisors of 815

List of positive integer divisors of 815 that divides 815 without a remainder.

1, 5, 163, 815

Divisors of 942

List of positive integer divisors of 942 that divides 942 without a remainder.

1, 2, 3, 6, 157, 314, 471, 942

Greatest Common Divisior

We found the divisors of 138, 815, 942 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 138, 815, 942 is 1.

Therefore, GCD of numbers 138, 815, 942 is 1

Given Input Data is 138, 815, 942

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

Prime Factorization of 138 is 2 x 3 x 23

Prime Factorization of 815 is 5 x 163

Prime Factorization of 942 is 2 x 3 x 157

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(138, 815) = 112470

GCD(138, 815) = ( 138 x 815 ) / 112470

GCD(138, 815) = 112470 / 112470

GCD(138, 815) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 942

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

LCM(1, 942) = 942

GCD(1, 942) = ( 1 x 942 ) / 942

GCD(1, 942) = 942 / 942

GCD(1, 942) = 1

GCD of 138, 815, 942 is 1

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1. What is the GCD of 138, 815, 942?

GCD of 138, 815, 942 is 1

2. Where do I get the detailed procedure to find GCD of 138, 815, 942?

You can find a detailed procedure to find GCD of 138, 815, 942 on our page.

3. How to find GCD of 138, 815, 942 on a calculator?

You can find the GCD of 138, 815, 942 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.