GCD of 688, 647, 73, 318 Calculator

Given Input numbers are 688, 647, 73, 318

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

Divisors of 688

List of positive integer divisors of 688 that divides 688 without a remainder.

1, 2, 4, 8, 16, 43, 86, 172, 344, 688

Divisors of 647

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

1, 647

Divisors of 73

List of positive integer divisors of 73 that divides 73 without a remainder.

1, 73

Divisors of 318

List of positive integer divisors of 318 that divides 318 without a remainder.

1, 2, 3, 6, 53, 106, 159, 318

Greatest Common Divisior

We found the divisors of 688, 647, 73, 318 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 688, 647, 73, 318 is 1.

Therefore, GCD of numbers 688, 647, 73, 318 is 1

Given Input Data is 688, 647, 73, 318

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

Prime Factorization of 688 is 2 x 2 x 2 x 2 x 43

Prime Factorization of 647 is 647

Prime Factorization of 73 is 73

Prime Factorization of 318 is 2 x 3 x 53

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(688, 647) = 445136

GCD(688, 647) = ( 688 x 647 ) / 445136

GCD(688, 647) = 445136 / 445136

GCD(688, 647) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 73

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

LCM(1, 73) = 73

GCD(1, 73) = ( 1 x 73 ) / 73

GCD(1, 73) = 73 / 73

GCD(1, 73) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 318

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

LCM(1, 318) = 318

GCD(1, 318) = ( 1 x 318 ) / 318

GCD(1, 318) = 318 / 318

GCD(1, 318) = 1

GCD of 688, 647, 73, 318 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 144, 918, 46, 387
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• GCD of 330, 821, 26, 837

1. What is the GCD of 688, 647, 73, 318?

GCD of 688, 647, 73, 318 is 1

2. Where do I get the detailed procedure to find GCD of 688, 647, 73, 318?

You can find a detailed procedure to find GCD of 688, 647, 73, 318 on our page.

3. How to find GCD of 688, 647, 73, 318 on a calculator?

You can find the GCD of 688, 647, 73, 318 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.