GCD of 549, 155, 770, 388 Calculator

Given Input numbers are 549, 155, 770, 388

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

Divisors of 549

List of positive integer divisors of 549 that divides 549 without a remainder.

1, 3, 9, 61, 183, 549

Divisors of 155

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

1, 5, 31, 155

Divisors of 770

List of positive integer divisors of 770 that divides 770 without a remainder.

1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

Greatest Common Divisior

We found the divisors of 549, 155, 770, 388 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 549, 155, 770, 388 is 1.

Therefore, GCD of numbers 549, 155, 770, 388 is 1

Given Input Data is 549, 155, 770, 388

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

Prime Factorization of 549 is 3 x 3 x 61

Prime Factorization of 155 is 5 x 31

Prime Factorization of 770 is 2 x 5 x 7 x 11

Prime Factorization of 388 is 2 x 2 x 97

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(549, 155) = 85095

GCD(549, 155) = ( 549 x 155 ) / 85095

GCD(549, 155) = 85095 / 85095

GCD(549, 155) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 770

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

LCM(1, 770) = 770

GCD(1, 770) = ( 1 x 770 ) / 770

GCD(1, 770) = 770 / 770

GCD(1, 770) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 388

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

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

GCD(1, 388) = 388 / 388

GCD(1, 388) = 1

GCD of 549, 155, 770, 388 is 1

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1. What is the GCD of 549, 155, 770, 388?

GCD of 549, 155, 770, 388 is 1

2. Where do I get the detailed procedure to find GCD of 549, 155, 770, 388?

You can find a detailed procedure to find GCD of 549, 155, 770, 388 on our page.

3. How to find GCD of 549, 155, 770, 388 on a calculator?

You can find the GCD of 549, 155, 770, 388 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.