GCD of 855, 643, 82, 386 Calculator

Given Input numbers are 855, 643, 82, 386

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

Divisors of 855

List of positive integer divisors of 855 that divides 855 without a remainder.

1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

Divisors of 643

List of positive integer divisors of 643 that divides 643 without a remainder.

1, 643

Divisors of 82

List of positive integer divisors of 82 that divides 82 without a remainder.

1, 2, 41, 82

Divisors of 386

List of positive integer divisors of 386 that divides 386 without a remainder.

1, 2, 193, 386

Greatest Common Divisior

We found the divisors of 855, 643, 82, 386 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 855, 643, 82, 386 is 1.

Therefore, GCD of numbers 855, 643, 82, 386 is 1

Given Input Data is 855, 643, 82, 386

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

Prime Factorization of 855 is 3 x 3 x 5 x 19

Prime Factorization of 643 is 643

Prime Factorization of 82 is 2 x 41

Prime Factorization of 386 is 2 x 193

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(855, 643) = 549765

GCD(855, 643) = ( 855 x 643 ) / 549765

GCD(855, 643) = 549765 / 549765

GCD(855, 643) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 82

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

LCM(1, 82) = 82

GCD(1, 82) = ( 1 x 82 ) / 82

GCD(1, 82) = 82 / 82

GCD(1, 82) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 386

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

LCM(1, 386) = 386

GCD(1, 386) = ( 1 x 386 ) / 386

GCD(1, 386) = 386 / 386

GCD(1, 386) = 1

GCD of 855, 643, 82, 386 is 1

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1. What is the GCD of 855, 643, 82, 386?

GCD of 855, 643, 82, 386 is 1

2. Where do I get the detailed procedure to find GCD of 855, 643, 82, 386?

You can find a detailed procedure to find GCD of 855, 643, 82, 386 on our page.

3. How to find GCD of 855, 643, 82, 386 on a calculator?

You can find the GCD of 855, 643, 82, 386 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.