GCD of 77, 921, 393, 130 Calculator

Given Input numbers are 77, 921, 393, 130

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

Divisors of 77

List of positive integer divisors of 77 that divides 77 without a remainder.

1, 7, 11, 77

Divisors of 921

List of positive integer divisors of 921 that divides 921 without a remainder.

1, 3, 307, 921

Divisors of 393

List of positive integer divisors of 393 that divides 393 without a remainder.

1, 3, 131, 393

Divisors of 130

List of positive integer divisors of 130 that divides 130 without a remainder.

1, 2, 5, 10, 13, 26, 65, 130

Greatest Common Divisior

We found the divisors of 77, 921, 393, 130 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 77, 921, 393, 130 is 1.

Therefore, GCD of numbers 77, 921, 393, 130 is 1

Given Input Data is 77, 921, 393, 130

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

Prime Factorization of 77 is 7 x 11

Prime Factorization of 921 is 3 x 307

Prime Factorization of 393 is 3 x 131

Prime Factorization of 130 is 2 x 5 x 13

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(77, 921) = 70917

GCD(77, 921) = ( 77 x 921 ) / 70917

GCD(77, 921) = 70917 / 70917

GCD(77, 921) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 393

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

LCM(1, 393) = 393

GCD(1, 393) = ( 1 x 393 ) / 393

GCD(1, 393) = 393 / 393

GCD(1, 393) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 130

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

LCM(1, 130) = 130

GCD(1, 130) = ( 1 x 130 ) / 130

GCD(1, 130) = 130 / 130

GCD(1, 130) = 1

GCD of 77, 921, 393, 130 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 11, 748, 710, 803
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• GCD of 37, 202, 233, 413
• GCD of 83, 279, 316, 305
• GCD of 70, 569, 408, 818

1. What is the GCD of 77, 921, 393, 130?

GCD of 77, 921, 393, 130 is 1

2. Where do I get the detailed procedure to find GCD of 77, 921, 393, 130?

You can find a detailed procedure to find GCD of 77, 921, 393, 130 on our page.

3. How to find GCD of 77, 921, 393, 130 on a calculator?

You can find the GCD of 77, 921, 393, 130 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.