GCD of 813, 321, 646 Calculator

Given Input numbers are 813, 321, 646

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

Divisors of 813 :

The positive integer divisors of 813 that completely divides 813 are.

1, 3, 271, 813

Divisors of 321 :

The positive integer divisors of 321 that completely divides 321 are.

1, 3, 107, 321

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

GCD of numbers is the greatest common divisor

So, the GCD (813, 321, 646) = 1.

Given numbers are 813, 321, 646

The list of prime factors of all numbers are

Prime factors of 813 are 3 x 271

Prime factors of 321 are 3 x 107

Prime factors of 646 are 2 x 17 x 19

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

Given numbers are 813, 321, 646

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

Apply this formula for all numbers.

Step1:

LCM(813, 321) = 86991

GCD(813, 321) = ( 813 x 321 ) / 86991

= 813 / 321

= 813

Step2:

LCM(3, 646) = 1938

GCD(3, 646) = ( 3 x 646 ) / 1938

= 3 / 646

= 3

So, Greatest Common Divisor of 813, 321, 646 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 294, 407, 834
• GCD of 181, 667, 998
• GCD of 753, 832, 406
• GCD of 463, 679, 585
• GCD of 161, 478, 110

Given numbers are 813, 321, 646
The greatest common divisor of numbers 813, 321, 646 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 813, 321, 646 is 1.

1. What is the GCD of 813, 321, 646?

GCD of given numbers 813, 321, 646 is 1

2. How to calculate the greatest common divisor of 813, 321, 646?

We can find the highest common divisor of 813, 321, 646 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 813, 321, 646 i.e 1.

3. How can I use the GCD of 813, 321, 646Calculator?

Out the numbers 813, 321, 646 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.