GCD of 170, 739, 20, 947 Calculator

Given Input numbers are 170, 739, 20, 947

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 739

List of positive integer divisors of 739 that divides 739 without a remainder.

1, 739

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 947

List of positive integer divisors of 947 that divides 947 without a remainder.

1, 947

Greatest Common Divisior

We found the divisors of 170, 739, 20, 947 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 170, 739, 20, 947 is 1.

Therefore, GCD of numbers 170, 739, 20, 947 is 1

Given Input Data is 170, 739, 20, 947

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 739 is 739

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 947 is 947

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(170, 739) = 125630

GCD(170, 739) = ( 170 x 739 ) / 125630

GCD(170, 739) = 125630 / 125630

GCD(170, 739) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 20

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

LCM(1, 20) = 20

GCD(1, 20) = ( 1 x 20 ) / 20

GCD(1, 20) = 20 / 20

GCD(1, 20) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 947

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

LCM(1, 947) = 947

GCD(1, 947) = ( 1 x 947 ) / 947

GCD(1, 947) = 947 / 947

GCD(1, 947) = 1

GCD of 170, 739, 20, 947 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 658, 378, 48, 967
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• GCD of 517, 645, 36, 797

1. What is the GCD of 170, 739, 20, 947?

GCD of 170, 739, 20, 947 is 1

2. Where do I get the detailed procedure to find GCD of 170, 739, 20, 947?

You can find a detailed procedure to find GCD of 170, 739, 20, 947 on our page.

3. How to find GCD of 170, 739, 20, 947 on a calculator?

You can find the GCD of 170, 739, 20, 947 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.