GCD of 378, 788, 79, 669 Calculator

Given Input numbers are 378, 788, 79, 669

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

Divisors of 378

List of positive integer divisors of 378 that divides 378 without a remainder.

1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378

Divisors of 788

List of positive integer divisors of 788 that divides 788 without a remainder.

1, 2, 4, 197, 394, 788

Divisors of 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 669

List of positive integer divisors of 669 that divides 669 without a remainder.

1, 3, 223, 669

Greatest Common Divisior

We found the divisors of 378, 788, 79, 669 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 378, 788, 79, 669 is 1.

Therefore, GCD of numbers 378, 788, 79, 669 is 1

Given Input Data is 378, 788, 79, 669

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

Prime Factorization of 378 is 2 x 3 x 3 x 3 x 7

Prime Factorization of 788 is 2 x 2 x 197

Prime Factorization of 79 is 79

Prime Factorization of 669 is 3 x 223

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(378, 788) = 148932

GCD(378, 788) = ( 378 x 788 ) / 148932

GCD(378, 788) = 297864 / 148932

GCD(378, 788) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 79

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

LCM(2, 79) = 158

GCD(2, 79) = ( 2 x 79 ) / 158

GCD(2, 79) = 158 / 158

GCD(2, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 669

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

LCM(1, 669) = 669

GCD(1, 669) = ( 1 x 669 ) / 669

GCD(1, 669) = 669 / 669

GCD(1, 669) = 1

GCD of 378, 788, 79, 669 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 924, 692, 39, 211
• GCD of 528, 253, 62, 932
• GCD of 195, 871, 85, 526
• GCD of 123, 507, 26, 575
• GCD of 651, 966, 64, 959

1. What is the GCD of 378, 788, 79, 669?

GCD of 378, 788, 79, 669 is 1

2. Where do I get the detailed procedure to find GCD of 378, 788, 79, 669?

You can find a detailed procedure to find GCD of 378, 788, 79, 669 on our page.

3. How to find GCD of 378, 788, 79, 669 on a calculator?

You can find the GCD of 378, 788, 79, 669 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.