GCD of 689, 621, 779, 495 Calculator

Given Input numbers are 689, 621, 779, 495

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

Divisors of 689

List of positive integer divisors of 689 that divides 689 without a remainder.

1, 13, 53, 689

Divisors of 621

List of positive integer divisors of 621 that divides 621 without a remainder.

1, 3, 9, 23, 27, 69, 207, 621

Divisors of 779

List of positive integer divisors of 779 that divides 779 without a remainder.

1, 19, 41, 779

Divisors of 495

List of positive integer divisors of 495 that divides 495 without a remainder.

1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495

Greatest Common Divisior

We found the divisors of 689, 621, 779, 495 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 689, 621, 779, 495 is 1.

Therefore, GCD of numbers 689, 621, 779, 495 is 1

Given Input Data is 689, 621, 779, 495

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

Prime Factorization of 689 is 13 x 53

Prime Factorization of 621 is 3 x 3 x 3 x 23

Prime Factorization of 779 is 19 x 41

Prime Factorization of 495 is 3 x 3 x 5 x 11

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(689, 621) = 427869

GCD(689, 621) = ( 689 x 621 ) / 427869

GCD(689, 621) = 427869 / 427869

GCD(689, 621) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 779

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

LCM(1, 779) = 779

GCD(1, 779) = ( 1 x 779 ) / 779

GCD(1, 779) = 779 / 779

GCD(1, 779) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 495

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

LCM(1, 495) = 495

GCD(1, 495) = ( 1 x 495 ) / 495

GCD(1, 495) = 495 / 495

GCD(1, 495) = 1

GCD of 689, 621, 779, 495 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 489, 797, 223, 143
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• GCD of 657, 240, 767, 679
• GCD of 550, 730, 495, 122
• GCD of 852, 681, 917, 829

1. What is the GCD of 689, 621, 779, 495?

GCD of 689, 621, 779, 495 is 1

2. Where do I get the detailed procedure to find GCD of 689, 621, 779, 495?

You can find a detailed procedure to find GCD of 689, 621, 779, 495 on our page.

3. How to find GCD of 689, 621, 779, 495 on a calculator?

You can find the GCD of 689, 621, 779, 495 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.