GCD of 642, 794, 681, 871 Calculator

Given Input numbers are 642, 794, 681, 871

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

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 794

List of positive integer divisors of 794 that divides 794 without a remainder.

1, 2, 397, 794

Divisors of 681

List of positive integer divisors of 681 that divides 681 without a remainder.

1, 3, 227, 681

Divisors of 871

List of positive integer divisors of 871 that divides 871 without a remainder.

1, 13, 67, 871

Greatest Common Divisior

We found the divisors of 642, 794, 681, 871 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 794, 681, 871 is 1.

Therefore, GCD of numbers 642, 794, 681, 871 is 1

Given Input Data is 642, 794, 681, 871

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

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 794 is 2 x 397

Prime Factorization of 681 is 3 x 227

Prime Factorization of 871 is 13 x 67

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(642, 794) = 254874

GCD(642, 794) = ( 642 x 794 ) / 254874

GCD(642, 794) = 509748 / 254874

GCD(642, 794) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 681

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

LCM(2, 681) = 1362

GCD(2, 681) = ( 2 x 681 ) / 1362

GCD(2, 681) = 1362 / 1362

GCD(2, 681) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 871

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

LCM(1, 871) = 871

GCD(1, 871) = ( 1 x 871 ) / 871

GCD(1, 871) = 871 / 871

GCD(1, 871) = 1

GCD of 642, 794, 681, 871 is 1

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1. What is the GCD of 642, 794, 681, 871?

GCD of 642, 794, 681, 871 is 1

2. Where do I get the detailed procedure to find GCD of 642, 794, 681, 871?

You can find a detailed procedure to find GCD of 642, 794, 681, 871 on our page.

3. How to find GCD of 642, 794, 681, 871 on a calculator?

You can find the GCD of 642, 794, 681, 871 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.