GCD of 663, 427, 220, 869 Calculator

Given Input numbers are 663, 427, 220, 869

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

Divisors of 663

List of positive integer divisors of 663 that divides 663 without a remainder.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 427

List of positive integer divisors of 427 that divides 427 without a remainder.

1, 7, 61, 427

Divisors of 220

List of positive integer divisors of 220 that divides 220 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

Divisors of 869

List of positive integer divisors of 869 that divides 869 without a remainder.

1, 11, 79, 869

Greatest Common Divisior

We found the divisors of 663, 427, 220, 869 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 663, 427, 220, 869 is 1.

Therefore, GCD of numbers 663, 427, 220, 869 is 1

Given Input Data is 663, 427, 220, 869

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

Prime Factorization of 663 is 3 x 13 x 17

Prime Factorization of 427 is 7 x 61

Prime Factorization of 220 is 2 x 2 x 5 x 11

Prime Factorization of 869 is 11 x 79

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(663, 427) = 283101

GCD(663, 427) = ( 663 x 427 ) / 283101

GCD(663, 427) = 283101 / 283101

GCD(663, 427) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 220

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

LCM(1, 220) = 220

GCD(1, 220) = ( 1 x 220 ) / 220

GCD(1, 220) = 220 / 220

GCD(1, 220) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 869

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

LCM(1, 869) = 869

GCD(1, 869) = ( 1 x 869 ) / 869

GCD(1, 869) = 869 / 869

GCD(1, 869) = 1

GCD of 663, 427, 220, 869 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 812, 755, 312, 250
• GCD of 176, 178, 556, 853
• GCD of 439, 110, 891, 213
• GCD of 516, 730, 341, 811
• GCD of 500, 288, 939, 381

1. What is the GCD of 663, 427, 220, 869?

GCD of 663, 427, 220, 869 is 1

2. Where do I get the detailed procedure to find GCD of 663, 427, 220, 869?

You can find a detailed procedure to find GCD of 663, 427, 220, 869 on our page.

3. How to find GCD of 663, 427, 220, 869 on a calculator?

You can find the GCD of 663, 427, 220, 869 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.