GCD of 638, 368, 428, 777 Calculator

Given Input numbers are 638, 368, 428, 777

In the factoring method, we have to find the divisors of all numbers

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 368 :

The positive integer divisors of 368 that completely divides 368 are.

1, 2, 4, 8, 16, 23, 46, 92, 184, 368

Divisors of 428 :

The positive integer divisors of 428 that completely divides 428 are.

1, 2, 4, 107, 214, 428

Divisors of 777 :

The positive integer divisors of 777 that completely divides 777 are.

1, 3, 7, 21, 37, 111, 259, 777

GCD of numbers is the greatest common divisor

So, the GCD (638, 368, 428, 777) = 1.

Given numbers are 638, 368, 428, 777

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 368 are 2 x 2 x 2 x 2 x 23

Prime factors of 428 are 2 x 2 x 107

Prime factors of 777 are 3 x 7 x 37

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 638, 368, 428, 777

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(638, 368) = 117392

GCD(638, 368) = ( 638 x 368 ) / 117392

= 638 / 368

= 638

Step2:

LCM(2, 428) = 428

GCD(2, 428) = ( 2 x 428 ) / 428

= 2 / 428

= 2

Step3:

LCM(2, 777) = 1554

GCD(2, 777) = ( 2 x 777 ) / 1554

= 2 / 777

= 2

So, Greatest Common Divisor of 638, 368, 428, 777 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 620, 728, 420, 243
• GCD of 465, 453, 245, 177
• GCD of 489, 213, 921, 951
• GCD of 628, 777, 861, 716
• GCD of 168, 840, 674, 109

Given numbers are 638, 368, 428, 777
The greatest common divisor of numbers 638, 368, 428, 777 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 368, 428, 777 is 1.

1. What is the GCD of 638, 368, 428, 777?

GCD of given numbers 638, 368, 428, 777 is 1

2. How to calculate the greatest common divisor of 638, 368, 428, 777?

We can find the highest common divisor of 638, 368, 428, 777 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 638, 368, 428, 777 i.e 1.

3. How can I use the GCD of 638, 368, 428, 777Calculator?

Out the numbers 638, 368, 428, 777 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.