GCD of 485, 472, 25, 561 Calculator

Given Input numbers are 485, 472, 25, 561

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

Divisors of 485

List of positive integer divisors of 485 that divides 485 without a remainder.

1, 5, 97, 485

Divisors of 472

List of positive integer divisors of 472 that divides 472 without a remainder.

1, 2, 4, 8, 59, 118, 236, 472

Divisors of 25

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

1, 5, 25

Divisors of 561

List of positive integer divisors of 561 that divides 561 without a remainder.

1, 3, 11, 17, 33, 51, 187, 561

Greatest Common Divisior

We found the divisors of 485, 472, 25, 561 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 485, 472, 25, 561 is 1.

Therefore, GCD of numbers 485, 472, 25, 561 is 1

Given Input Data is 485, 472, 25, 561

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

Prime Factorization of 485 is 5 x 97

Prime Factorization of 472 is 2 x 2 x 2 x 59

Prime Factorization of 25 is 5 x 5

Prime Factorization of 561 is 3 x 11 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(485, 472) = 228920

GCD(485, 472) = ( 485 x 472 ) / 228920

GCD(485, 472) = 228920 / 228920

GCD(485, 472) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 25

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

LCM(1, 25) = 25

GCD(1, 25) = ( 1 x 25 ) / 25

GCD(1, 25) = 25 / 25

GCD(1, 25) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 561

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

LCM(1, 561) = 561

GCD(1, 561) = ( 1 x 561 ) / 561

GCD(1, 561) = 561 / 561

GCD(1, 561) = 1

GCD of 485, 472, 25, 561 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 409, 954, 83, 622
• GCD of 748, 413, 29, 157
• GCD of 296, 719, 42, 977
• GCD of 229, 771, 24, 651
• GCD of 336, 545, 28, 763

1. What is the GCD of 485, 472, 25, 561?

GCD of 485, 472, 25, 561 is 1

2. Where do I get the detailed procedure to find GCD of 485, 472, 25, 561?

You can find a detailed procedure to find GCD of 485, 472, 25, 561 on our page.

3. How to find GCD of 485, 472, 25, 561 on a calculator?

You can find the GCD of 485, 472, 25, 561 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.