GCD of 561, 818, 550, 821 Calculator

Given Input numbers are 561, 818, 550, 821

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 818 :

The positive integer divisors of 818 that completely divides 818 are.

1, 2, 409, 818

Divisors of 550 :

The positive integer divisors of 550 that completely divides 550 are.

1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

GCD of numbers is the greatest common divisor

So, the GCD (561, 818, 550, 821) = 1.

Given numbers are 561, 818, 550, 821

The list of prime factors of all numbers are

Prime factors of 561 are 3 x 11 x 17

Prime factors of 818 are 2 x 409

Prime factors of 550 are 2 x 5 x 5 x 11

Prime factors of 821 are 821

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

Given numbers are 561, 818, 550, 821

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

Apply this formula for all numbers.

Step1:

LCM(561, 818) = 458898

GCD(561, 818) = ( 561 x 818 ) / 458898

= 561 / 818

= 561

Step2:

LCM(1, 550) = 550

GCD(1, 550) = ( 1 x 550 ) / 550

= 1 / 550

= 1

Step3:

LCM(1, 821) = 821

GCD(1, 821) = ( 1 x 821 ) / 821

= 1 / 821

= 1

So, Greatest Common Divisor of 561, 818, 550, 821 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 352, 702, 805, 714
• GCD of 463, 934, 113, 250
• GCD of 929, 912, 193, 411
• GCD of 546, 361, 508, 275
• GCD of 300, 701, 253, 975

Given numbers are 561, 818, 550, 821
The greatest common divisor of numbers 561, 818, 550, 821 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 561, 818, 550, 821 is 1.

1. What is the GCD of 561, 818, 550, 821?

GCD of given numbers 561, 818, 550, 821 is 1

2. How to calculate the greatest common divisor of 561, 818, 550, 821?

We can find the highest common divisor of 561, 818, 550, 821 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, 818, 550, 821 i.e 1.

3. How can I use the GCD of 561, 818, 550, 821Calculator?

Out the numbers 561, 818, 550, 821 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.