GCD of 355, 284, 620 Calculator

Given Input numbers are 355, 284, 620

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

Divisors of 355

List of positive integer divisors of 355 that divides 355 without a remainder.

1, 5, 71, 355

Divisors of 284

List of positive integer divisors of 284 that divides 284 without a remainder.

1, 2, 4, 71, 142, 284

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

Greatest Common Divisior

We found the divisors of 355, 284, 620 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 355, 284, 620 is 1.

Therefore, GCD of numbers 355, 284, 620 is 1

Given Input Data is 355, 284, 620

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

Prime Factorization of 355 is 5 x 71

Prime Factorization of 284 is 2 x 2 x 71

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

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(355, 284) = 1420

GCD(355, 284) = ( 355 x 284 ) / 1420

GCD(355, 284) = 100820 / 1420

GCD(355, 284) = 71

Step2:

Here we consider the GCD from the above i.e. 71 as first number and the next as 620

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

LCM(71, 620) = 44020

GCD(71, 620) = ( 71 x 620 ) / 44020

GCD(71, 620) = 44020 / 44020

GCD(71, 620) = 1

GCD of 355, 284, 620 is 1

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1. What is the GCD of 355, 284, 620?

GCD of 355, 284, 620 is 1

2. Where do I get the detailed procedure to find GCD of 355, 284, 620?

You can find a detailed procedure to find GCD of 355, 284, 620 on our page.

3. How to find GCD of 355, 284, 620 on a calculator?

You can find the GCD of 355, 284, 620 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.