GCD of 687, 561, 272, 281 Calculator

Given Input numbers are 687, 561, 272, 281

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

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

Divisors of 561 :

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

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

Divisors of 272 :

The positive integer divisors of 272 that completely divides 272 are.

1, 2, 4, 8, 16, 17, 34, 68, 136, 272

Divisors of 281 :

The positive integer divisors of 281 that completely divides 281 are.

1, 281

GCD of numbers is the greatest common divisor

So, the GCD (687, 561, 272, 281) = 1.

Given numbers are 687, 561, 272, 281

The list of prime factors of all numbers are

Prime factors of 687 are 3 x 229

Prime factors of 561 are 3 x 11 x 17

Prime factors of 272 are 2 x 2 x 2 x 2 x 17

Prime factors of 281 are 281

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

Given numbers are 687, 561, 272, 281

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

Apply this formula for all numbers.

Step1:

LCM(687, 561) = 128469

GCD(687, 561) = ( 687 x 561 ) / 128469

= 687 / 561

= 687

Step2:

LCM(3, 272) = 816

GCD(3, 272) = ( 3 x 272 ) / 816

= 3 / 272

= 3

Step3:

LCM(1, 281) = 281

GCD(1, 281) = ( 1 x 281 ) / 281

= 1 / 281

= 1

So, Greatest Common Divisor of 687, 561, 272, 281 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 110, 663, 351, 522
• GCD of 863, 756, 139, 853
• GCD of 150, 777, 691, 748
• GCD of 294, 224, 891, 489
• GCD of 908, 909, 542, 787

Given numbers are 687, 561, 272, 281
The greatest common divisor of numbers 687, 561, 272, 281 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 561, 272, 281 is 1.

1. What is the GCD of 687, 561, 272, 281?

GCD of given numbers 687, 561, 272, 281 is 1

2. How to calculate the greatest common divisor of 687, 561, 272, 281?

We can find the highest common divisor of 687, 561, 272, 281 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 687, 561, 272, 281 i.e 1.

3. How can I use the GCD of 687, 561, 272, 281Calculator?

Out the numbers 687, 561, 272, 281 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.