GCD of 979, 402, 78, 361 Calculator

Given Input numbers are 979, 402, 78, 361

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

Divisors of 979

List of positive integer divisors of 979 that divides 979 without a remainder.

1, 11, 89, 979

Divisors of 402

List of positive integer divisors of 402 that divides 402 without a remainder.

1, 2, 3, 6, 67, 134, 201, 402

Divisors of 78

List of positive integer divisors of 78 that divides 78 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78

Divisors of 361

List of positive integer divisors of 361 that divides 361 without a remainder.

1, 19, 361

Greatest Common Divisior

We found the divisors of 979, 402, 78, 361 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 979, 402, 78, 361 is 1.

Therefore, GCD of numbers 979, 402, 78, 361 is 1

Given Input Data is 979, 402, 78, 361

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

Prime Factorization of 979 is 11 x 89

Prime Factorization of 402 is 2 x 3 x 67

Prime Factorization of 78 is 2 x 3 x 13

Prime Factorization of 361 is 19 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(979, 402) = 393558

GCD(979, 402) = ( 979 x 402 ) / 393558

GCD(979, 402) = 393558 / 393558

GCD(979, 402) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 78

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

LCM(1, 78) = 78

GCD(1, 78) = ( 1 x 78 ) / 78

GCD(1, 78) = 78 / 78

GCD(1, 78) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 361

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

LCM(1, 361) = 361

GCD(1, 361) = ( 1 x 361 ) / 361

GCD(1, 361) = 361 / 361

GCD(1, 361) = 1

GCD of 979, 402, 78, 361 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 639, 572, 19, 113
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• GCD of 833, 636, 90, 716
• GCD of 416, 943, 83, 744
• GCD of 866, 426, 21, 111

1. What is the GCD of 979, 402, 78, 361?

GCD of 979, 402, 78, 361 is 1

2. Where do I get the detailed procedure to find GCD of 979, 402, 78, 361?

You can find a detailed procedure to find GCD of 979, 402, 78, 361 on our page.

3. How to find GCD of 979, 402, 78, 361 on a calculator?

You can find the GCD of 979, 402, 78, 361 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.