GCD of 647, 652, 72, 615 Calculator

Given Input numbers are 647, 652, 72, 615

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

Divisors of 647

List of positive integer divisors of 647 that divides 647 without a remainder.

1, 647

Divisors of 652

List of positive integer divisors of 652 that divides 652 without a remainder.

1, 2, 4, 163, 326, 652

Divisors of 72

List of positive integer divisors of 72 that divides 72 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

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 647, 652, 72, 615 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 647, 652, 72, 615 is 1.

Therefore, GCD of numbers 647, 652, 72, 615 is 1

Given Input Data is 647, 652, 72, 615

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

Prime Factorization of 647 is 647

Prime Factorization of 652 is 2 x 2 x 163

Prime Factorization of 72 is 2 x 2 x 2 x 3 x 3

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(647, 652) = 421844

GCD(647, 652) = ( 647 x 652 ) / 421844

GCD(647, 652) = 421844 / 421844

GCD(647, 652) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 72

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

LCM(1, 72) = 72

GCD(1, 72) = ( 1 x 72 ) / 72

GCD(1, 72) = 72 / 72

GCD(1, 72) = 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 647, 652, 72, 615 is 1

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1. What is the GCD of 647, 652, 72, 615?

GCD of 647, 652, 72, 615 is 1

2. Where do I get the detailed procedure to find GCD of 647, 652, 72, 615?

You can find a detailed procedure to find GCD of 647, 652, 72, 615 on our page.

3. How to find GCD of 647, 652, 72, 615 on a calculator?

You can find the GCD of 647, 652, 72, 615 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.