GCD of 155, 155, 81, 272 Calculator

Given Input numbers are 155, 155, 81, 272

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 155

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

1, 5, 31, 155

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 272

List of positive integer divisors of 272 that divides 272 without a remainder.

1, 2, 4, 8, 16, 17, 34, 68, 136, 272

Greatest Common Divisior

We found the divisors of 155, 155, 81, 272 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 155, 155, 81, 272 is 1.

Therefore, GCD of numbers 155, 155, 81, 272 is 1

Given Input Data is 155, 155, 81, 272

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

Prime Factorization of 155 is 5 x 31

Prime Factorization of 155 is 5 x 31

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 272 is 2 x 2 x 2 x 2 x 17

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, 155) = 155

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

GCD(155, 155) = 24025 / 155

GCD(155, 155) = 155

Step2:

Here we consider the GCD from the above i.e. 155 as first number and the next as 81

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

LCM(155, 81) = 12555

GCD(155, 81) = ( 155 x 81 ) / 12555

GCD(155, 81) = 12555 / 12555

GCD(155, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 272

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

LCM(1, 272) = 272

GCD(1, 272) = ( 1 x 272 ) / 272

GCD(1, 272) = 272 / 272

GCD(1, 272) = 1

GCD of 155, 155, 81, 272 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 897, 367, 35, 333
• GCD of 498, 966, 18, 573
• GCD of 267, 472, 61, 685
• GCD of 194, 790, 65, 353
• GCD of 720, 524, 39, 849

1. What is the GCD of 155, 155, 81, 272?

GCD of 155, 155, 81, 272 is 1

2. Where do I get the detailed procedure to find GCD of 155, 155, 81, 272?

You can find a detailed procedure to find GCD of 155, 155, 81, 272 on our page.

3. How to find GCD of 155, 155, 81, 272 on a calculator?

You can find the GCD of 155, 155, 81, 272 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.