GCD of 289, 903, 390, 139 Calculator

Given Input numbers are 289, 903, 390, 139

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

Divisors of 289

List of positive integer divisors of 289 that divides 289 without a remainder.

1, 17, 289

Divisors of 903

List of positive integer divisors of 903 that divides 903 without a remainder.

1, 3, 7, 21, 43, 129, 301, 903

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

Divisors of 139

List of positive integer divisors of 139 that divides 139 without a remainder.

1, 139

Greatest Common Divisior

We found the divisors of 289, 903, 390, 139 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 289, 903, 390, 139 is 1.

Therefore, GCD of numbers 289, 903, 390, 139 is 1

Given Input Data is 289, 903, 390, 139

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

Prime Factorization of 289 is 17 x 17

Prime Factorization of 903 is 3 x 7 x 43

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

Prime Factorization of 139 is 139

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(289, 903) = 260967

GCD(289, 903) = ( 289 x 903 ) / 260967

GCD(289, 903) = 260967 / 260967

GCD(289, 903) = 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

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 139

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

LCM(1, 139) = 139

GCD(1, 139) = ( 1 x 139 ) / 139

GCD(1, 139) = 139 / 139

GCD(1, 139) = 1

GCD of 289, 903, 390, 139 is 1

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1. What is the GCD of 289, 903, 390, 139?

GCD of 289, 903, 390, 139 is 1

2. Where do I get the detailed procedure to find GCD of 289, 903, 390, 139?

You can find a detailed procedure to find GCD of 289, 903, 390, 139 on our page.

3. How to find GCD of 289, 903, 390, 139 on a calculator?

You can find the GCD of 289, 903, 390, 139 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.