GCD of 520, 305, 210, 191 Calculator

Given Input numbers are 520, 305, 210, 191

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

Divisors of 520

List of positive integer divisors of 520 that divides 520 without a remainder.

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520

Divisors of 305

List of positive integer divisors of 305 that divides 305 without a remainder.

1, 5, 61, 305

Divisors of 210

List of positive integer divisors of 210 that divides 210 without a remainder.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210

Divisors of 191

List of positive integer divisors of 191 that divides 191 without a remainder.

1, 191

Greatest Common Divisior

We found the divisors of 520, 305, 210, 191 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 520, 305, 210, 191 is 1.

Therefore, GCD of numbers 520, 305, 210, 191 is 1

Given Input Data is 520, 305, 210, 191

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

Prime Factorization of 520 is 2 x 2 x 2 x 5 x 13

Prime Factorization of 305 is 5 x 61

Prime Factorization of 210 is 2 x 3 x 5 x 7

Prime Factorization of 191 is 191

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(520, 305) = 31720

GCD(520, 305) = ( 520 x 305 ) / 31720

GCD(520, 305) = 158600 / 31720

GCD(520, 305) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 210

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

LCM(5, 210) = 210

GCD(5, 210) = ( 5 x 210 ) / 210

GCD(5, 210) = 1050 / 210

GCD(5, 210) = 5

Step3:

Here we consider the GCD from the above i.e. 5 as first number and the next as 191

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

LCM(5, 191) = 955

GCD(5, 191) = ( 5 x 191 ) / 955

GCD(5, 191) = 955 / 955

GCD(5, 191) = 1

GCD of 520, 305, 210, 191 is 1

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• GCD of 780, 641, 915, 628
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1. What is the GCD of 520, 305, 210, 191?

GCD of 520, 305, 210, 191 is 1

2. Where do I get the detailed procedure to find GCD of 520, 305, 210, 191?

You can find a detailed procedure to find GCD of 520, 305, 210, 191 on our page.

3. How to find GCD of 520, 305, 210, 191 on a calculator?

You can find the GCD of 520, 305, 210, 191 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.