GCD of 390, 639, 967 Calculator

Given Input numbers are 390, 639, 967

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

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 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 967

List of positive integer divisors of 967 that divides 967 without a remainder.

1, 967

Greatest Common Divisior

We found the divisors of 390, 639, 967 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 390, 639, 967 is 1.

Therefore, GCD of numbers 390, 639, 967 is 1

Given Input Data is 390, 639, 967

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

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

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 967 is 967

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(390, 639) = 83070

GCD(390, 639) = ( 390 x 639 ) / 83070

GCD(390, 639) = 249210 / 83070

GCD(390, 639) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 967

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

LCM(3, 967) = 2901

GCD(3, 967) = ( 3 x 967 ) / 2901

GCD(3, 967) = 2901 / 2901

GCD(3, 967) = 1

GCD of 390, 639, 967 is 1

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1. What is the GCD of 390, 639, 967?

GCD of 390, 639, 967 is 1

2. Where do I get the detailed procedure to find GCD of 390, 639, 967?

You can find a detailed procedure to find GCD of 390, 639, 967 on our page.

3. How to find GCD of 390, 639, 967 on a calculator?

You can find the GCD of 390, 639, 967 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.