GCD of 647, 647, 30, 980 Calculator

Given Input numbers are 647, 647, 30, 980

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 647

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

1, 647

Divisors of 30

List of positive integer divisors of 30 that divides 30 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30

Divisors of 980

List of positive integer divisors of 980 that divides 980 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980

Greatest Common Divisior

We found the divisors of 647, 647, 30, 980 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 647, 647, 30, 980 is 1.

Therefore, GCD of numbers 647, 647, 30, 980 is 1

Given Input Data is 647, 647, 30, 980

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

Prime Factorization of 647 is 647

Prime Factorization of 647 is 647

Prime Factorization of 30 is 2 x 3 x 5

Prime Factorization of 980 is 2 x 2 x 5 x 7 x 7

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, 647) = 647

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

GCD(647, 647) = 418609 / 647

GCD(647, 647) = 647

Step2:

Here we consider the GCD from the above i.e. 647 as first number and the next as 30

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

LCM(647, 30) = 19410

GCD(647, 30) = ( 647 x 30 ) / 19410

GCD(647, 30) = 19410 / 19410

GCD(647, 30) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 980

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

LCM(1, 980) = 980

GCD(1, 980) = ( 1 x 980 ) / 980

GCD(1, 980) = 980 / 980

GCD(1, 980) = 1

GCD of 647, 647, 30, 980 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 479, 295, 60, 965
• GCD of 670, 343, 82, 880
• GCD of 775, 871, 89, 306
• GCD of 505, 900, 31, 477
• GCD of 111, 195, 52, 176

1. What is the GCD of 647, 647, 30, 980?

GCD of 647, 647, 30, 980 is 1

2. Where do I get the detailed procedure to find GCD of 647, 647, 30, 980?

You can find a detailed procedure to find GCD of 647, 647, 30, 980 on our page.

3. How to find GCD of 647, 647, 30, 980 on a calculator?

You can find the GCD of 647, 647, 30, 980 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.