GCD of 155, 612, 12, 242 Calculator

Given Input numbers are 155, 612, 12, 242

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

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Divisors of 612

List of positive integer divisors of 612 that divides 612 without a remainder.

1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612

Divisors of 12

List of positive integer divisors of 12 that divides 12 without a remainder.

1, 2, 3, 4, 6, 12

Divisors of 242

List of positive integer divisors of 242 that divides 242 without a remainder.

1, 2, 11, 22, 121, 242

Greatest Common Divisior

We found the divisors of 155, 612, 12, 242 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 155, 612, 12, 242 is 1.

Therefore, GCD of numbers 155, 612, 12, 242 is 1

Given Input Data is 155, 612, 12, 242

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

Prime Factorization of 155 is 5 x 31

Prime Factorization of 612 is 2 x 2 x 3 x 3 x 17

Prime Factorization of 12 is 2 x 2 x 3

Prime Factorization of 242 is 2 x 11 x 11

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(155, 612) = 94860

GCD(155, 612) = ( 155 x 612 ) / 94860

GCD(155, 612) = 94860 / 94860

GCD(155, 612) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 12

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

LCM(1, 12) = 12

GCD(1, 12) = ( 1 x 12 ) / 12

GCD(1, 12) = 12 / 12

GCD(1, 12) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 242

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

LCM(1, 242) = 242

GCD(1, 242) = ( 1 x 242 ) / 242

GCD(1, 242) = 242 / 242

GCD(1, 242) = 1

GCD of 155, 612, 12, 242 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 808, 611, 78, 278
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• GCD of 436, 929, 39, 641
• GCD of 663, 894, 36, 661

1. What is the GCD of 155, 612, 12, 242?

GCD of 155, 612, 12, 242 is 1

2. Where do I get the detailed procedure to find GCD of 155, 612, 12, 242?

You can find a detailed procedure to find GCD of 155, 612, 12, 242 on our page.

3. How to find GCD of 155, 612, 12, 242 on a calculator?

You can find the GCD of 155, 612, 12, 242 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.