GCD of 170, 718, 644 Calculator

Given Input numbers are 170, 718, 644

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

Divisors of 170

List of positive integer divisors of 170 that divides 170 without a remainder.

1, 2, 5, 10, 17, 34, 85, 170

Divisors of 718

List of positive integer divisors of 718 that divides 718 without a remainder.

1, 2, 359, 718

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Greatest Common Divisior

We found the divisors of 170, 718, 644 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 170, 718, 644 is 2.

Therefore, GCD of numbers 170, 718, 644 is 2

Given Input Data is 170, 718, 644

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

Prime Factorization of 170 is 2 x 5 x 17

Prime Factorization of 718 is 2 x 359

Prime Factorization of 644 is 2 x 2 x 7 x 23

Highest common occurrences in the given inputs are 2¹

Multiplying them we get the GCD as 2

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(170, 718) = 61030

GCD(170, 718) = ( 170 x 718 ) / 61030

GCD(170, 718) = 122060 / 61030

GCD(170, 718) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 644

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

LCM(2, 644) = 644

GCD(2, 644) = ( 2 x 644 ) / 644

GCD(2, 644) = 1288 / 644

GCD(2, 644) = 2

GCD of 170, 718, 644 is 2

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1. What is the GCD of 170, 718, 644?

GCD of 170, 718, 644 is 2

2. Where do I get the detailed procedure to find GCD of 170, 718, 644?

You can find a detailed procedure to find GCD of 170, 718, 644 on our page.

3. How to find GCD of 170, 718, 644 on a calculator?

You can find the GCD of 170, 718, 644 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.