GCD of 389, 360, 70, 405 Calculator

Given Input numbers are 389, 360, 70, 405

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

Divisors of 389

List of positive integer divisors of 389 that divides 389 without a remainder.

1, 389

Divisors of 360

List of positive integer divisors of 360 that divides 360 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360

Divisors of 70

List of positive integer divisors of 70 that divides 70 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70

Divisors of 405

List of positive integer divisors of 405 that divides 405 without a remainder.

1, 3, 5, 9, 15, 27, 45, 81, 135, 405

Greatest Common Divisior

We found the divisors of 389, 360, 70, 405 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 389, 360, 70, 405 is 1.

Therefore, GCD of numbers 389, 360, 70, 405 is 1

Given Input Data is 389, 360, 70, 405

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

Prime Factorization of 389 is 389

Prime Factorization of 360 is 2 x 2 x 2 x 3 x 3 x 5

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 405 is 3 x 3 x 3 x 3 x 5

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(389, 360) = 140040

GCD(389, 360) = ( 389 x 360 ) / 140040

GCD(389, 360) = 140040 / 140040

GCD(389, 360) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 70

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

LCM(1, 70) = 70

GCD(1, 70) = ( 1 x 70 ) / 70

GCD(1, 70) = 70 / 70

GCD(1, 70) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 405

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

LCM(1, 405) = 405

GCD(1, 405) = ( 1 x 405 ) / 405

GCD(1, 405) = 405 / 405

GCD(1, 405) = 1

GCD of 389, 360, 70, 405 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 700, 122, 31, 490
• GCD of 696, 151, 53, 957
• GCD of 264, 857, 43, 747
• GCD of 646, 380, 69, 907
• GCD of 940, 445, 34, 243

1. What is the GCD of 389, 360, 70, 405?

GCD of 389, 360, 70, 405 is 1

2. Where do I get the detailed procedure to find GCD of 389, 360, 70, 405?

You can find a detailed procedure to find GCD of 389, 360, 70, 405 on our page.

3. How to find GCD of 389, 360, 70, 405 on a calculator?

You can find the GCD of 389, 360, 70, 405 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.