GCD of 638, 973, 76, 247 Calculator

Given Input numbers are 638, 973, 76, 247

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

Divisors of 638

List of positive integer divisors of 638 that divides 638 without a remainder.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 973

List of positive integer divisors of 973 that divides 973 without a remainder.

1, 7, 139, 973

Divisors of 76

List of positive integer divisors of 76 that divides 76 without a remainder.

1, 2, 4, 19, 38, 76

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

Greatest Common Divisior

We found the divisors of 638, 973, 76, 247 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 638, 973, 76, 247 is 1.

Therefore, GCD of numbers 638, 973, 76, 247 is 1

Given Input Data is 638, 973, 76, 247

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

Prime Factorization of 638 is 2 x 11 x 29

Prime Factorization of 973 is 7 x 139

Prime Factorization of 76 is 2 x 2 x 19

Prime Factorization of 247 is 13 x 19

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(638, 973) = 620774

GCD(638, 973) = ( 638 x 973 ) / 620774

GCD(638, 973) = 620774 / 620774

GCD(638, 973) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 76

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

LCM(1, 76) = 76

GCD(1, 76) = ( 1 x 76 ) / 76

GCD(1, 76) = 76 / 76

GCD(1, 76) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 247

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

LCM(1, 247) = 247

GCD(1, 247) = ( 1 x 247 ) / 247

GCD(1, 247) = 247 / 247

GCD(1, 247) = 1

GCD of 638, 973, 76, 247 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 151, 933, 27, 205
• GCD of 313, 254, 93, 288
• GCD of 242, 207, 83, 678
• GCD of 165, 492, 17, 192
• GCD of 928, 146, 65, 103

1. What is the GCD of 638, 973, 76, 247?

GCD of 638, 973, 76, 247 is 1

2. Where do I get the detailed procedure to find GCD of 638, 973, 76, 247?

You can find a detailed procedure to find GCD of 638, 973, 76, 247 on our page.

3. How to find GCD of 638, 973, 76, 247 on a calculator?

You can find the GCD of 638, 973, 76, 247 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.