GCD of 55, 25, 30 Calculator

Given Input numbers are 55, 25, 30

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

Divisors of 55

List of positive integer divisors of 55 that divides 55 without a remainder.

1, 5, 11, 55

Divisors of 25

List of positive integer divisors of 25 that divides 25 without a remainder.

1, 5, 25

Divisors of 30

List of positive integer divisors of 30 that divides 30 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30

Greatest Common Divisior

We found the divisors of 55, 25, 30 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 55, 25, 30 is 5.

Therefore, GCD of numbers 55, 25, 30 is 5

Given Input Data is 55, 25, 30

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

Prime Factorization of 55 is 5 x 11

Prime Factorization of 25 is 5 x 5

Prime Factorization of 30 is 2 x 3 x 5

Highest common occurrences in the given inputs are 5¹

Multiplying them we get the GCD as 5

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(55, 25) = 275

GCD(55, 25) = ( 55 x 25 ) / 275

GCD(55, 25) = 1375 / 275

GCD(55, 25) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 30

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

LCM(5, 30) = 30

GCD(5, 30) = ( 5 x 30 ) / 30

GCD(5, 30) = 150 / 30

GCD(5, 30) = 5

GCD of 55, 25, 30 is 5

Here are some samples of GCD of Numbers calculations.

• GCD of 91, 12, 27
• GCD of 80, 18, 55
• GCD of 56, 18, 59
• GCD of 91, 19, 82
• GCD of 69, 88, 90

1. What is the GCD of 55, 25, 30?

GCD of 55, 25, 30 is 5

2. Where do I get the detailed procedure to find GCD of 55, 25, 30?

You can find a detailed procedure to find GCD of 55, 25, 30 on our page.

3. How to find GCD of 55, 25, 30 on a calculator?

You can find the GCD of 55, 25, 30 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.