GCD of 978, 129, 650, 124 Calculator

Given Input numbers are 978, 129, 650, 124

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

Divisors of 978

List of positive integer divisors of 978 that divides 978 without a remainder.

1, 2, 3, 6, 163, 326, 489, 978

Divisors of 129

List of positive integer divisors of 129 that divides 129 without a remainder.

1, 3, 43, 129

Divisors of 650

List of positive integer divisors of 650 that divides 650 without a remainder.

1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650

Divisors of 124

List of positive integer divisors of 124 that divides 124 without a remainder.

1, 2, 4, 31, 62, 124

Greatest Common Divisior

We found the divisors of 978, 129, 650, 124 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 978, 129, 650, 124 is 1.

Therefore, GCD of numbers 978, 129, 650, 124 is 1

Given Input Data is 978, 129, 650, 124

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

Prime Factorization of 978 is 2 x 3 x 163

Prime Factorization of 129 is 3 x 43

Prime Factorization of 650 is 2 x 5 x 5 x 13

Prime Factorization of 124 is 2 x 2 x 31

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(978, 129) = 42054

GCD(978, 129) = ( 978 x 129 ) / 42054

GCD(978, 129) = 126162 / 42054

GCD(978, 129) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 650

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

LCM(3, 650) = 1950

GCD(3, 650) = ( 3 x 650 ) / 1950

GCD(3, 650) = 1950 / 1950

GCD(3, 650) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 124

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

LCM(1, 124) = 124

GCD(1, 124) = ( 1 x 124 ) / 124

GCD(1, 124) = 124 / 124

GCD(1, 124) = 1

GCD of 978, 129, 650, 124 is 1

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• GCD of 819, 938, 981, 833
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1. What is the GCD of 978, 129, 650, 124?

GCD of 978, 129, 650, 124 is 1

2. Where do I get the detailed procedure to find GCD of 978, 129, 650, 124?

You can find a detailed procedure to find GCD of 978, 129, 650, 124 on our page.

3. How to find GCD of 978, 129, 650, 124 on a calculator?

You can find the GCD of 978, 129, 650, 124 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.