GCD of 855, 691, 153, 371 Calculator

Given Input numbers are 855, 691, 153, 371

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 691

List of positive integer divisors of 691 that divides 691 without a remainder.

1, 691

Divisors of 153

List of positive integer divisors of 153 that divides 153 without a remainder.

1, 3, 9, 17, 51, 153

Divisors of 371

List of positive integer divisors of 371 that divides 371 without a remainder.

1, 7, 53, 371

Greatest Common Divisior

We found the divisors of 855, 691, 153, 371 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 855, 691, 153, 371 is 1.

Therefore, GCD of numbers 855, 691, 153, 371 is 1

Given Input Data is 855, 691, 153, 371

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 691 is 691

Prime Factorization of 153 is 3 x 3 x 17

Prime Factorization of 371 is 7 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(855, 691) = 590805

GCD(855, 691) = ( 855 x 691 ) / 590805

GCD(855, 691) = 590805 / 590805

GCD(855, 691) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 153

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

LCM(1, 153) = 153

GCD(1, 153) = ( 1 x 153 ) / 153

GCD(1, 153) = 153 / 153

GCD(1, 153) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 371

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

LCM(1, 371) = 371

GCD(1, 371) = ( 1 x 371 ) / 371

GCD(1, 371) = 371 / 371

GCD(1, 371) = 1

GCD of 855, 691, 153, 371 is 1

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1. What is the GCD of 855, 691, 153, 371?

GCD of 855, 691, 153, 371 is 1

2. Where do I get the detailed procedure to find GCD of 855, 691, 153, 371?

You can find a detailed procedure to find GCD of 855, 691, 153, 371 on our page.

3. How to find GCD of 855, 691, 153, 371 on a calculator?

You can find the GCD of 855, 691, 153, 371 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.