GCD of 869, 722, 390 Calculator

Given Input numbers are 869, 722, 390

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

Divisors of 869

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

1, 11, 79, 869

Divisors of 722

List of positive integer divisors of 722 that divides 722 without a remainder.

1, 2, 19, 38, 361, 722

Divisors of 390

List of positive integer divisors of 390 that divides 390 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Greatest Common Divisior

We found the divisors of 869, 722, 390 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 869, 722, 390 is 1.

Therefore, GCD of numbers 869, 722, 390 is 1

Given Input Data is 869, 722, 390

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

Prime Factorization of 869 is 11 x 79

Prime Factorization of 722 is 2 x 19 x 19

Prime Factorization of 390 is 2 x 3 x 5 x 13

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(869, 722) = 627418

GCD(869, 722) = ( 869 x 722 ) / 627418

GCD(869, 722) = 627418 / 627418

GCD(869, 722) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 390

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

LCM(1, 390) = 390

GCD(1, 390) = ( 1 x 390 ) / 390

GCD(1, 390) = 390 / 390

GCD(1, 390) = 1

GCD of 869, 722, 390 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 666, 644, 159
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• GCD of 711, 639, 241

1. What is the GCD of 869, 722, 390?

GCD of 869, 722, 390 is 1

2. Where do I get the detailed procedure to find GCD of 869, 722, 390?

You can find a detailed procedure to find GCD of 869, 722, 390 on our page.

3. How to find GCD of 869, 722, 390 on a calculator?

You can find the GCD of 869, 722, 390 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.