GCD of 617, 621, 858, 478 Calculator

Given Input numbers are 617, 621, 858, 478

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

Divisors of 617

List of positive integer divisors of 617 that divides 617 without a remainder.

1, 617

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 858

List of positive integer divisors of 858 that divides 858 without a remainder.

1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858

Divisors of 478

List of positive integer divisors of 478 that divides 478 without a remainder.

1, 2, 239, 478

Greatest Common Divisior

We found the divisors of 617, 621, 858, 478 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 617, 621, 858, 478 is 1.

Therefore, GCD of numbers 617, 621, 858, 478 is 1

Given Input Data is 617, 621, 858, 478

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

Prime Factorization of 617 is 617

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

Prime Factorization of 858 is 2 x 3 x 11 x 13

Prime Factorization of 478 is 2 x 239

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(617, 621) = 383157

GCD(617, 621) = ( 617 x 621 ) / 383157

GCD(617, 621) = 383157 / 383157

GCD(617, 621) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 858

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

LCM(1, 858) = 858

GCD(1, 858) = ( 1 x 858 ) / 858

GCD(1, 858) = 858 / 858

GCD(1, 858) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 478

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

LCM(1, 478) = 478

GCD(1, 478) = ( 1 x 478 ) / 478

GCD(1, 478) = 478 / 478

GCD(1, 478) = 1

GCD of 617, 621, 858, 478 is 1

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1. What is the GCD of 617, 621, 858, 478?

GCD of 617, 621, 858, 478 is 1

2. Where do I get the detailed procedure to find GCD of 617, 621, 858, 478?

You can find a detailed procedure to find GCD of 617, 621, 858, 478 on our page.

3. How to find GCD of 617, 621, 858, 478 on a calculator?

You can find the GCD of 617, 621, 858, 478 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.