GCD of 391, 836, 764, 315 Calculator

Given Input numbers are 391, 836, 764, 315

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 836

List of positive integer divisors of 836 that divides 836 without a remainder.

1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836

Divisors of 764

List of positive integer divisors of 764 that divides 764 without a remainder.

1, 2, 4, 191, 382, 764

Divisors of 315

List of positive integer divisors of 315 that divides 315 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315

Greatest Common Divisior

We found the divisors of 391, 836, 764, 315 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 391, 836, 764, 315 is 1.

Therefore, GCD of numbers 391, 836, 764, 315 is 1

Given Input Data is 391, 836, 764, 315

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

Prime Factorization of 391 is 17 x 23

Prime Factorization of 836 is 2 x 2 x 11 x 19

Prime Factorization of 764 is 2 x 2 x 191

Prime Factorization of 315 is 3 x 3 x 5 x 7

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, 836) = 326876

GCD(391, 836) = ( 391 x 836 ) / 326876

GCD(391, 836) = 326876 / 326876

GCD(391, 836) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 764

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

LCM(1, 764) = 764

GCD(1, 764) = ( 1 x 764 ) / 764

GCD(1, 764) = 764 / 764

GCD(1, 764) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 315

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

LCM(1, 315) = 315

GCD(1, 315) = ( 1 x 315 ) / 315

GCD(1, 315) = 315 / 315

GCD(1, 315) = 1

GCD of 391, 836, 764, 315 is 1

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1. What is the GCD of 391, 836, 764, 315?

GCD of 391, 836, 764, 315 is 1

2. Where do I get the detailed procedure to find GCD of 391, 836, 764, 315?

You can find a detailed procedure to find GCD of 391, 836, 764, 315 on our page.

3. How to find GCD of 391, 836, 764, 315 on a calculator?

You can find the GCD of 391, 836, 764, 315 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.