GCD of 423, 243, 642, 565 Calculator

Given Input numbers are 423, 243, 642, 565

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

Divisors of 423 :

The positive integer divisors of 423 that completely divides 423 are.

1, 3, 9, 47, 141, 423

Divisors of 243 :

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

1, 3, 9, 27, 81, 243

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 565 :

The positive integer divisors of 565 that completely divides 565 are.

1, 5, 113, 565

GCD of numbers is the greatest common divisor

So, the GCD (423, 243, 642, 565) = 1.

Given numbers are 423, 243, 642, 565

The list of prime factors of all numbers are

Prime factors of 423 are 3 x 3 x 47

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

Prime factors of 642 are 2 x 3 x 107

Prime factors of 565 are 5 x 113

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

Given numbers are 423, 243, 642, 565

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

Apply this formula for all numbers.

Step1:

LCM(423, 243) = 11421

GCD(423, 243) = ( 423 x 243 ) / 11421

= 423 / 243

= 423

Step2:

LCM(9, 642) = 1926

GCD(9, 642) = ( 9 x 642 ) / 1926

= 9 / 642

= 9

Step3:

LCM(3, 565) = 1695

GCD(3, 565) = ( 3 x 565 ) / 1695

= 3 / 565

= 3

So, Greatest Common Divisor of 423, 243, 642, 565 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 555, 793, 948, 888
• GCD of 982, 866, 676, 715
• GCD of 870, 876, 626, 272
• GCD of 506, 865, 950, 728
• GCD of 294, 968, 168, 544

Given numbers are 423, 243, 642, 565
The greatest common divisor of numbers 423, 243, 642, 565 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 423, 243, 642, 565 is 1.

1. What is the GCD of 423, 243, 642, 565?

GCD of given numbers 423, 243, 642, 565 is 1

2. How to calculate the greatest common divisor of 423, 243, 642, 565?

We can find the highest common divisor of 423, 243, 642, 565 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 423, 243, 642, 565 i.e 1.

3. How can I use the GCD of 423, 243, 642, 565Calculator?

Out the numbers 423, 243, 642, 565 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.