GCD of 280, 685, 29, 634 Calculator

Given Input numbers are 280, 685, 29, 634

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

Divisors of 280

List of positive integer divisors of 280 that divides 280 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

Divisors of 685

List of positive integer divisors of 685 that divides 685 without a remainder.

1, 5, 137, 685

Divisors of 29

List of positive integer divisors of 29 that divides 29 without a remainder.

1, 29

Divisors of 634

List of positive integer divisors of 634 that divides 634 without a remainder.

1, 2, 317, 634

Greatest Common Divisior

We found the divisors of 280, 685, 29, 634 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 280, 685, 29, 634 is 1.

Therefore, GCD of numbers 280, 685, 29, 634 is 1

Given Input Data is 280, 685, 29, 634

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

Prime Factorization of 280 is 2 x 2 x 2 x 5 x 7

Prime Factorization of 685 is 5 x 137

Prime Factorization of 29 is 29

Prime Factorization of 634 is 2 x 317

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(280, 685) = 38360

GCD(280, 685) = ( 280 x 685 ) / 38360

GCD(280, 685) = 191800 / 38360

GCD(280, 685) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 29

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

LCM(5, 29) = 145

GCD(5, 29) = ( 5 x 29 ) / 145

GCD(5, 29) = 145 / 145

GCD(5, 29) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 634

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

LCM(1, 634) = 634

GCD(1, 634) = ( 1 x 634 ) / 634

GCD(1, 634) = 634 / 634

GCD(1, 634) = 1

GCD of 280, 685, 29, 634 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 694, 330, 97, 361
• GCD of 734, 876, 39, 495
• GCD of 195, 330, 90, 742
• GCD of 535, 365, 31, 669
• GCD of 988, 336, 62, 261

1. What is the GCD of 280, 685, 29, 634?

GCD of 280, 685, 29, 634 is 1

2. Where do I get the detailed procedure to find GCD of 280, 685, 29, 634?

You can find a detailed procedure to find GCD of 280, 685, 29, 634 on our page.

3. How to find GCD of 280, 685, 29, 634 on a calculator?

You can find the GCD of 280, 685, 29, 634 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.