GCD of 615, 674, 20 Calculator

Given Input numbers are 615, 674, 20

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

Divisors of 615

List of positive integer divisors of 615 that divides 615 without a remainder.

1, 3, 5, 15, 41, 123, 205, 615

Divisors of 674

List of positive integer divisors of 674 that divides 674 without a remainder.

1, 2, 337, 674

Divisors of 20

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

1, 2, 4, 5, 10, 20

Greatest Common Divisior

We found the divisors of 615, 674, 20 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 615, 674, 20 is 1.

Therefore, GCD of numbers 615, 674, 20 is 1

Given Input Data is 615, 674, 20

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

Prime Factorization of 615 is 3 x 5 x 41

Prime Factorization of 674 is 2 x 337

Prime Factorization of 20 is 2 x 2 x 5

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(615, 674) = 414510

GCD(615, 674) = ( 615 x 674 ) / 414510

GCD(615, 674) = 414510 / 414510

GCD(615, 674) = 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

GCD of 615, 674, 20 is 1

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1. What is the GCD of 615, 674, 20?

GCD of 615, 674, 20 is 1

2. Where do I get the detailed procedure to find GCD of 615, 674, 20?

You can find a detailed procedure to find GCD of 615, 674, 20 on our page.

3. How to find GCD of 615, 674, 20 on a calculator?

You can find the GCD of 615, 674, 20 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.