GCD of 393, 639, 819, 747 Calculator

Given Input numbers are 393, 639, 819, 747

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

Divisors of 393 :

The positive integer divisors of 393 that completely divides 393 are.

1, 3, 131, 393

Divisors of 639 :

The positive integer divisors of 639 that completely divides 639 are.

1, 3, 9, 71, 213, 639

Divisors of 819 :

The positive integer divisors of 819 that completely divides 819 are.

1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819

Divisors of 747 :

The positive integer divisors of 747 that completely divides 747 are.

1, 3, 9, 83, 249, 747

GCD of numbers is the greatest common divisor

So, the GCD (393, 639, 819, 747) = 3.

Given numbers are 393, 639, 819, 747

The list of prime factors of all numbers are

Prime factors of 393 are 3 x 131

Prime factors of 639 are 3 x 3 x 71

Prime factors of 819 are 3 x 3 x 7 x 13

Prime factors of 747 are 3 x 3 x 83

The highest common occurrence is 3¹

Therefore, GCD of 393, 639, 819, 747 is 3.

Given numbers are 393, 639, 819, 747

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

Apply this formula for all numbers.

Step1:

LCM(393, 639) = 83709

GCD(393, 639) = ( 393 x 639 ) / 83709

= 393 / 639

= 393

Step2:

LCM(3, 819) = 819

GCD(3, 819) = ( 3 x 819 ) / 819

= 3 / 819

= 3

Step3:

LCM(3, 747) = 747

GCD(3, 747) = ( 3 x 747 ) / 747

= 3 / 747

= 3

So, Greatest Common Divisor of 393, 639, 819, 747 is 3

Here are some samples of GCD of Numbers calculations.

• GCD of 189, 779, 433, 330
• GCD of 418, 391, 632, 896
• GCD of 343, 485, 458, 907
• GCD of 356, 228, 130, 253
• GCD of 342, 589, 348, 104

Given numbers are 393, 639, 819, 747
The greatest common divisor of numbers 393, 639, 819, 747 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 393, 639, 819, 747 is 3.

1. What is the GCD of 393, 639, 819, 747?

GCD of given numbers 393, 639, 819, 747 is 3

2. How to calculate the greatest common divisor of 393, 639, 819, 747?

We can find the highest common divisor of 393, 639, 819, 747 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 393, 639, 819, 747 i.e 3.

3. How can I use the GCD of 393, 639, 819, 747Calculator?

Out the numbers 393, 639, 819, 747 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.