GCD of 105, 639, 585 Calculator

Given Input numbers are 105, 639, 585

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

Divisors of 105

List of positive integer divisors of 105 that divides 105 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 585

List of positive integer divisors of 585 that divides 585 without a remainder.

1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585

Greatest Common Divisior

We found the divisors of 105, 639, 585 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 105, 639, 585 is 3.

Therefore, GCD of numbers 105, 639, 585 is 3

Given Input Data is 105, 639, 585

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

Prime Factorization of 105 is 3 x 5 x 7

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 585 is 3 x 3 x 5 x 13

Highest common occurrences in the given inputs are 3¹

Multiplying them we get the GCD as 3

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(105, 639) = 22365

GCD(105, 639) = ( 105 x 639 ) / 22365

GCD(105, 639) = 67095 / 22365

GCD(105, 639) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 585

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

LCM(3, 585) = 585

GCD(3, 585) = ( 3 x 585 ) / 585

GCD(3, 585) = 1755 / 585

GCD(3, 585) = 3

GCD of 105, 639, 585 is 3

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1. What is the GCD of 105, 639, 585?

GCD of 105, 639, 585 is 3

2. Where do I get the detailed procedure to find GCD of 105, 639, 585?

You can find a detailed procedure to find GCD of 105, 639, 585 on our page.

3. How to find GCD of 105, 639, 585 on a calculator?

You can find the GCD of 105, 639, 585 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.