GCD of 815, 438, 706, 657 Calculator

Given Input numbers are 815, 438, 706, 657

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

Divisors of 815

List of positive integer divisors of 815 that divides 815 without a remainder.

1, 5, 163, 815

Divisors of 438

List of positive integer divisors of 438 that divides 438 without a remainder.

1, 2, 3, 6, 73, 146, 219, 438

Divisors of 706

List of positive integer divisors of 706 that divides 706 without a remainder.

1, 2, 353, 706

Divisors of 657

List of positive integer divisors of 657 that divides 657 without a remainder.

1, 3, 9, 73, 219, 657

Greatest Common Divisior

We found the divisors of 815, 438, 706, 657 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 815, 438, 706, 657 is 1.

Therefore, GCD of numbers 815, 438, 706, 657 is 1

Given Input Data is 815, 438, 706, 657

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

Prime Factorization of 815 is 5 x 163

Prime Factorization of 438 is 2 x 3 x 73

Prime Factorization of 706 is 2 x 353

Prime Factorization of 657 is 3 x 3 x 73

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(815, 438) = 356970

GCD(815, 438) = ( 815 x 438 ) / 356970

GCD(815, 438) = 356970 / 356970

GCD(815, 438) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 706

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

LCM(1, 706) = 706

GCD(1, 706) = ( 1 x 706 ) / 706

GCD(1, 706) = 706 / 706

GCD(1, 706) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 657

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

LCM(1, 657) = 657

GCD(1, 657) = ( 1 x 657 ) / 657

GCD(1, 657) = 657 / 657

GCD(1, 657) = 1

GCD of 815, 438, 706, 657 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 481, 252, 939, 248
• GCD of 747, 596, 388, 689
• GCD of 799, 798, 279, 154
• GCD of 425, 784, 644, 189
• GCD of 461, 897, 523, 239

1. What is the GCD of 815, 438, 706, 657?

GCD of 815, 438, 706, 657 is 1

2. Where do I get the detailed procedure to find GCD of 815, 438, 706, 657?

You can find a detailed procedure to find GCD of 815, 438, 706, 657 on our page.

3. How to find GCD of 815, 438, 706, 657 on a calculator?

You can find the GCD of 815, 438, 706, 657 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.