GCD of 555, 639, 871, 989 Calculator

Given Input numbers are 555, 639, 871, 989

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

Divisors of 555

List of positive integer divisors of 555 that divides 555 without a remainder.

1, 3, 5, 15, 37, 111, 185, 555

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 871

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

1, 13, 67, 871

Divisors of 989

List of positive integer divisors of 989 that divides 989 without a remainder.

1, 23, 43, 989

Greatest Common Divisior

We found the divisors of 555, 639, 871, 989 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 555, 639, 871, 989 is 1.

Therefore, GCD of numbers 555, 639, 871, 989 is 1

Given Input Data is 555, 639, 871, 989

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

Prime Factorization of 555 is 3 x 5 x 37

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 871 is 13 x 67

Prime Factorization of 989 is 23 x 43

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(555, 639) = 118215

GCD(555, 639) = ( 555 x 639 ) / 118215

GCD(555, 639) = 354645 / 118215

GCD(555, 639) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 871

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

LCM(3, 871) = 2613

GCD(3, 871) = ( 3 x 871 ) / 2613

GCD(3, 871) = 2613 / 2613

GCD(3, 871) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 989

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

LCM(1, 989) = 989

GCD(1, 989) = ( 1 x 989 ) / 989

GCD(1, 989) = 989 / 989

GCD(1, 989) = 1

GCD of 555, 639, 871, 989 is 1

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• GCD of 258, 214, 817, 760
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• GCD of 499, 470, 127, 844

1. What is the GCD of 555, 639, 871, 989?

GCD of 555, 639, 871, 989 is 1

2. Where do I get the detailed procedure to find GCD of 555, 639, 871, 989?

You can find a detailed procedure to find GCD of 555, 639, 871, 989 on our page.

3. How to find GCD of 555, 639, 871, 989 on a calculator?

You can find the GCD of 555, 639, 871, 989 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.