GCD of 644, 789, 633, 635 Calculator

Given Input numbers are 644, 789, 633, 635

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

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 789

List of positive integer divisors of 789 that divides 789 without a remainder.

1, 3, 263, 789

Divisors of 633

List of positive integer divisors of 633 that divides 633 without a remainder.

1, 3, 211, 633

Divisors of 635

List of positive integer divisors of 635 that divides 635 without a remainder.

1, 5, 127, 635

Greatest Common Divisior

We found the divisors of 644, 789, 633, 635 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 644, 789, 633, 635 is 1.

Therefore, GCD of numbers 644, 789, 633, 635 is 1

Given Input Data is 644, 789, 633, 635

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

Prime Factorization of 644 is 2 x 2 x 7 x 23

Prime Factorization of 789 is 3 x 263

Prime Factorization of 633 is 3 x 211

Prime Factorization of 635 is 5 x 127

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(644, 789) = 508116

GCD(644, 789) = ( 644 x 789 ) / 508116

GCD(644, 789) = 508116 / 508116

GCD(644, 789) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 633

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

LCM(1, 633) = 633

GCD(1, 633) = ( 1 x 633 ) / 633

GCD(1, 633) = 633 / 633

GCD(1, 633) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 635

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

LCM(1, 635) = 635

GCD(1, 635) = ( 1 x 635 ) / 635

GCD(1, 635) = 635 / 635

GCD(1, 635) = 1

GCD of 644, 789, 633, 635 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 294, 630, 103, 685
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• GCD of 586, 437, 818, 649
• GCD of 334, 543, 423, 752
• GCD of 727, 332, 523, 725

1. What is the GCD of 644, 789, 633, 635?

GCD of 644, 789, 633, 635 is 1

2. Where do I get the detailed procedure to find GCD of 644, 789, 633, 635?

You can find a detailed procedure to find GCD of 644, 789, 633, 635 on our page.

3. How to find GCD of 644, 789, 633, 635 on a calculator?

You can find the GCD of 644, 789, 633, 635 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.