GCD of 243, 321, 686 Calculator

Given Input numbers are 243, 321, 686

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

Divisors of 243 :

The positive integer divisors of 243 that completely divides 243 are.

1, 3, 9, 27, 81, 243

Divisors of 321 :

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

1, 3, 107, 321

Divisors of 686 :

The positive integer divisors of 686 that completely divides 686 are.

1, 2, 7, 14, 49, 98, 343, 686

GCD of numbers is the greatest common divisor

So, the GCD (243, 321, 686) = 1.

Given numbers are 243, 321, 686

The list of prime factors of all numbers are

Prime factors of 243 are 3 x 3 x 3 x 3 x 3

Prime factors of 321 are 3 x 107

Prime factors of 686 are 2 x 7 x 7 x 7

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

Given numbers are 243, 321, 686

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

Apply this formula for all numbers.

Step1:

LCM(243, 321) = 26001

GCD(243, 321) = ( 243 x 321 ) / 26001

= 243 / 321

= 243

Step2:

LCM(3, 686) = 2058

GCD(3, 686) = ( 3 x 686 ) / 2058

= 3 / 686

= 3

So, Greatest Common Divisor of 243, 321, 686 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 921, 741, 961
• GCD of 174, 402, 635
• GCD of 141, 568, 200
• GCD of 640, 739, 145
• GCD of 438, 179, 488

Given numbers are 243, 321, 686
The greatest common divisor of numbers 243, 321, 686 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 243, 321, 686 is 1.

1. What is the GCD of 243, 321, 686?

GCD of given numbers 243, 321, 686 is 1

2. How to calculate the greatest common divisor of 243, 321, 686?

We can find the highest common divisor of 243, 321, 686 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 243, 321, 686 i.e 1.

3. How can I use the GCD of 243, 321, 686Calculator?

Out the numbers 243, 321, 686 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.