GCD of 636, 261, 860, 639 Calculator

Given Input numbers are 636, 261, 860, 639

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

Divisors of 636

List of positive integer divisors of 636 that divides 636 without a remainder.

1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636

Divisors of 261

List of positive integer divisors of 261 that divides 261 without a remainder.

1, 3, 9, 29, 87, 261

Divisors of 860

List of positive integer divisors of 860 that divides 860 without a remainder.

1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

Divisors of 639

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

1, 3, 9, 71, 213, 639

Greatest Common Divisior

We found the divisors of 636, 261, 860, 639 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 636, 261, 860, 639 is 1.

Therefore, GCD of numbers 636, 261, 860, 639 is 1

Given Input Data is 636, 261, 860, 639

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

Prime Factorization of 636 is 2 x 2 x 3 x 53

Prime Factorization of 261 is 3 x 3 x 29

Prime Factorization of 860 is 2 x 2 x 5 x 43

Prime Factorization of 639 is 3 x 3 x 71

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(636, 261) = 55332

GCD(636, 261) = ( 636 x 261 ) / 55332

GCD(636, 261) = 165996 / 55332

GCD(636, 261) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 860

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

LCM(3, 860) = 2580

GCD(3, 860) = ( 3 x 860 ) / 2580

GCD(3, 860) = 2580 / 2580

GCD(3, 860) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 639

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

LCM(1, 639) = 639

GCD(1, 639) = ( 1 x 639 ) / 639

GCD(1, 639) = 639 / 639

GCD(1, 639) = 1

GCD of 636, 261, 860, 639 is 1

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• GCD of 944, 260, 483, 656

1. What is the GCD of 636, 261, 860, 639?

GCD of 636, 261, 860, 639 is 1

2. Where do I get the detailed procedure to find GCD of 636, 261, 860, 639?

You can find a detailed procedure to find GCD of 636, 261, 860, 639 on our page.

3. How to find GCD of 636, 261, 860, 639 on a calculator?

You can find the GCD of 636, 261, 860, 639 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.