GCD of 391, 991, 39, 318 Calculator

Given Input numbers are 391, 991, 39, 318

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

Divisors of 391

List of positive integer divisors of 391 that divides 391 without a remainder.

1, 17, 23, 391

Divisors of 991

List of positive integer divisors of 991 that divides 991 without a remainder.

1, 991

Divisors of 39

List of positive integer divisors of 39 that divides 39 without a remainder.

1, 3, 13, 39

Divisors of 318

List of positive integer divisors of 318 that divides 318 without a remainder.

1, 2, 3, 6, 53, 106, 159, 318

Greatest Common Divisior

We found the divisors of 391, 991, 39, 318 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 391, 991, 39, 318 is 1.

Therefore, GCD of numbers 391, 991, 39, 318 is 1

Given Input Data is 391, 991, 39, 318

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

Prime Factorization of 391 is 17 x 23

Prime Factorization of 991 is 991

Prime Factorization of 39 is 3 x 13

Prime Factorization of 318 is 2 x 3 x 53

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(391, 991) = 387481

GCD(391, 991) = ( 391 x 991 ) / 387481

GCD(391, 991) = 387481 / 387481

GCD(391, 991) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 39

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

LCM(1, 39) = 39

GCD(1, 39) = ( 1 x 39 ) / 39

GCD(1, 39) = 39 / 39

GCD(1, 39) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 318

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

LCM(1, 318) = 318

GCD(1, 318) = ( 1 x 318 ) / 318

GCD(1, 318) = 318 / 318

GCD(1, 318) = 1

GCD of 391, 991, 39, 318 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 830, 166, 62, 897
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• GCD of 814, 374, 70, 546
• GCD of 539, 603, 72, 461

1. What is the GCD of 391, 991, 39, 318?

GCD of 391, 991, 39, 318 is 1

2. Where do I get the detailed procedure to find GCD of 391, 991, 39, 318?

You can find a detailed procedure to find GCD of 391, 991, 39, 318 on our page.

3. How to find GCD of 391, 991, 39, 318 on a calculator?

You can find the GCD of 391, 991, 39, 318 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.