GCD of 561, 558, 650, 638 Calculator

Given Input numbers are 561, 558, 650, 638

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

Divisors of 561 :

The positive integer divisors of 561 that completely divides 561 are.

1, 3, 11, 17, 33, 51, 187, 561

Divisors of 558 :

The positive integer divisors of 558 that completely divides 558 are.

1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558

Divisors of 650 :

The positive integer divisors of 650 that completely divides 650 are.

1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

GCD of numbers is the greatest common divisor

So, the GCD (561, 558, 650, 638) = 1.

Given numbers are 561, 558, 650, 638

The list of prime factors of all numbers are

Prime factors of 561 are 3 x 11 x 17

Prime factors of 558 are 2 x 3 x 3 x 31

Prime factors of 650 are 2 x 5 x 5 x 13

Prime factors of 638 are 2 x 11 x 29

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

Given numbers are 561, 558, 650, 638

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

Apply this formula for all numbers.

Step1:

LCM(561, 558) = 104346

GCD(561, 558) = ( 561 x 558 ) / 104346

= 561 / 558

= 561

Step2:

LCM(3, 650) = 1950

GCD(3, 650) = ( 3 x 650 ) / 1950

= 3 / 650

= 3

Step3:

LCM(1, 638) = 638

GCD(1, 638) = ( 1 x 638 ) / 638

= 1 / 638

= 1

So, Greatest Common Divisor of 561, 558, 650, 638 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 167, 858, 149, 246
• GCD of 359, 941, 586, 183
• GCD of 423, 724, 917, 548
• GCD of 721, 467, 898, 628
• GCD of 647, 441, 769, 620

Given numbers are 561, 558, 650, 638
The greatest common divisor of numbers 561, 558, 650, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 561, 558, 650, 638 is 1.

1. What is the GCD of 561, 558, 650, 638?

GCD of given numbers 561, 558, 650, 638 is 1

2. How to calculate the greatest common divisor of 561, 558, 650, 638?

We can find the highest common divisor of 561, 558, 650, 638 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 561, 558, 650, 638 i.e 1.

3. How can I use the GCD of 561, 558, 650, 638Calculator?

Out the numbers 561, 558, 650, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.