GCD of 620, 489, 61, 793 Calculator

Given Input numbers are 620, 489, 61, 793

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

Divisors of 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Divisors of 489

List of positive integer divisors of 489 that divides 489 without a remainder.

1, 3, 163, 489

Divisors of 61

List of positive integer divisors of 61 that divides 61 without a remainder.

1, 61

Divisors of 793

List of positive integer divisors of 793 that divides 793 without a remainder.

1, 13, 61, 793

Greatest Common Divisior

We found the divisors of 620, 489, 61, 793 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 620, 489, 61, 793 is 1.

Therefore, GCD of numbers 620, 489, 61, 793 is 1

Given Input Data is 620, 489, 61, 793

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

Prime Factorization of 620 is 2 x 2 x 5 x 31

Prime Factorization of 489 is 3 x 163

Prime Factorization of 61 is 61

Prime Factorization of 793 is 13 x 61

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(620, 489) = 303180

GCD(620, 489) = ( 620 x 489 ) / 303180

GCD(620, 489) = 303180 / 303180

GCD(620, 489) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 61

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

LCM(1, 61) = 61

GCD(1, 61) = ( 1 x 61 ) / 61

GCD(1, 61) = 61 / 61

GCD(1, 61) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 793

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

LCM(1, 793) = 793

GCD(1, 793) = ( 1 x 793 ) / 793

GCD(1, 793) = 793 / 793

GCD(1, 793) = 1

GCD of 620, 489, 61, 793 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 664, 507, 61, 864
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• GCD of 484, 502, 91, 184

1. What is the GCD of 620, 489, 61, 793?

GCD of 620, 489, 61, 793 is 1

2. Where do I get the detailed procedure to find GCD of 620, 489, 61, 793?

You can find a detailed procedure to find GCD of 620, 489, 61, 793 on our page.

3. How to find GCD of 620, 489, 61, 793 on a calculator?

You can find the GCD of 620, 489, 61, 793 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.