GCD of 247, 180, 44, 155 Calculator

Given Input numbers are 247, 180, 44, 155

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

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

Divisors of 180

List of positive integer divisors of 180 that divides 180 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180

Divisors of 44

List of positive integer divisors of 44 that divides 44 without a remainder.

1, 2, 4, 11, 22, 44

Divisors of 155

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

1, 5, 31, 155

Greatest Common Divisior

We found the divisors of 247, 180, 44, 155 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 247, 180, 44, 155 is 1.

Therefore, GCD of numbers 247, 180, 44, 155 is 1

Given Input Data is 247, 180, 44, 155

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

Prime Factorization of 247 is 13 x 19

Prime Factorization of 180 is 2 x 2 x 3 x 3 x 5

Prime Factorization of 44 is 2 x 2 x 11

Prime Factorization of 155 is 5 x 31

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(247, 180) = 44460

GCD(247, 180) = ( 247 x 180 ) / 44460

GCD(247, 180) = 44460 / 44460

GCD(247, 180) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 44

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

LCM(1, 44) = 44

GCD(1, 44) = ( 1 x 44 ) / 44

GCD(1, 44) = 44 / 44

GCD(1, 44) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 155

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

LCM(1, 155) = 155

GCD(1, 155) = ( 1 x 155 ) / 155

GCD(1, 155) = 155 / 155

GCD(1, 155) = 1

GCD of 247, 180, 44, 155 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 714, 678, 53, 511
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• GCD of 679, 114, 82, 446

1. What is the GCD of 247, 180, 44, 155?

GCD of 247, 180, 44, 155 is 1

2. Where do I get the detailed procedure to find GCD of 247, 180, 44, 155?

You can find a detailed procedure to find GCD of 247, 180, 44, 155 on our page.

3. How to find GCD of 247, 180, 44, 155 on a calculator?

You can find the GCD of 247, 180, 44, 155 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.