GCD of 428, 388, 430, 809 Calculator

Given Input numbers are 428, 388, 430, 809

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

Divisors of 428 :

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

1, 2, 4, 107, 214, 428

Divisors of 388 :

The positive integer divisors of 388 that completely divides 388 are.

1, 2, 4, 97, 194, 388

Divisors of 430 :

The positive integer divisors of 430 that completely divides 430 are.

1, 2, 5, 10, 43, 86, 215, 430

Divisors of 809 :

The positive integer divisors of 809 that completely divides 809 are.

1, 809

GCD of numbers is the greatest common divisor

So, the GCD (428, 388, 430, 809) = 1.

Given numbers are 428, 388, 430, 809

The list of prime factors of all numbers are

Prime factors of 428 are 2 x 2 x 107

Prime factors of 388 are 2 x 2 x 97

Prime factors of 430 are 2 x 5 x 43

Prime factors of 809 are 809

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

Given numbers are 428, 388, 430, 809

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

Apply this formula for all numbers.

Step1:

LCM(428, 388) = 41516

GCD(428, 388) = ( 428 x 388 ) / 41516

= 428 / 388

= 428

Step2:

LCM(4, 430) = 860

GCD(4, 430) = ( 4 x 430 ) / 860

= 4 / 430

= 4

Step3:

LCM(2, 809) = 1618

GCD(2, 809) = ( 2 x 809 ) / 1618

= 2 / 809

= 2

So, Greatest Common Divisor of 428, 388, 430, 809 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 900, 789, 654, 408
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• GCD of 529, 296, 623, 742

Given numbers are 428, 388, 430, 809
The greatest common divisor of numbers 428, 388, 430, 809 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 428, 388, 430, 809 is 1.

1. What is the GCD of 428, 388, 430, 809?

GCD of given numbers 428, 388, 430, 809 is 1

2. How to calculate the greatest common divisor of 428, 388, 430, 809?

We can find the highest common divisor of 428, 388, 430, 809 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 428, 388, 430, 809 i.e 1.

3. How can I use the GCD of 428, 388, 430, 809Calculator?

Out the numbers 428, 388, 430, 809 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.