GCD of 842, 505, 13, 615 Calculator

Given Input numbers are 842, 505, 13, 615

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

Divisors of 842

List of positive integer divisors of 842 that divides 842 without a remainder.

1, 2, 421, 842

Divisors of 505

List of positive integer divisors of 505 that divides 505 without a remainder.

1, 5, 101, 505

Divisors of 13

List of positive integer divisors of 13 that divides 13 without a remainder.

1, 13

Divisors of 615

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

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

Greatest Common Divisior

We found the divisors of 842, 505, 13, 615 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 842, 505, 13, 615 is 1.

Therefore, GCD of numbers 842, 505, 13, 615 is 1

Given Input Data is 842, 505, 13, 615

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

Prime Factorization of 842 is 2 x 421

Prime Factorization of 505 is 5 x 101

Prime Factorization of 13 is 13

Prime Factorization of 615 is 3 x 5 x 41

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(842, 505) = 425210

GCD(842, 505) = ( 842 x 505 ) / 425210

GCD(842, 505) = 425210 / 425210

GCD(842, 505) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 13

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

LCM(1, 13) = 13

GCD(1, 13) = ( 1 x 13 ) / 13

GCD(1, 13) = 13 / 13

GCD(1, 13) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 615

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

LCM(1, 615) = 615

GCD(1, 615) = ( 1 x 615 ) / 615

GCD(1, 615) = 615 / 615

GCD(1, 615) = 1

GCD of 842, 505, 13, 615 is 1

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1. What is the GCD of 842, 505, 13, 615?

GCD of 842, 505, 13, 615 is 1

2. Where do I get the detailed procedure to find GCD of 842, 505, 13, 615?

You can find a detailed procedure to find GCD of 842, 505, 13, 615 on our page.

3. How to find GCD of 842, 505, 13, 615 on a calculator?

You can find the GCD of 842, 505, 13, 615 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.