GCD of 561, 400, 687 Calculator

Given Input numbers are 561, 400, 687

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 400 :

The positive integer divisors of 400 that completely divides 400 are.

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400

Divisors of 687 :

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

1, 3, 229, 687

GCD of numbers is the greatest common divisor

So, the GCD (561, 400, 687) = 1.

Given numbers are 561, 400, 687

The list of prime factors of all numbers are

Prime factors of 561 are 3 x 11 x 17

Prime factors of 400 are 2 x 2 x 2 x 2 x 5 x 5

Prime factors of 687 are 3 x 229

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

Given numbers are 561, 400, 687

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

Apply this formula for all numbers.

Step1:

LCM(561, 400) = 224400

GCD(561, 400) = ( 561 x 400 ) / 224400

= 561 / 400

= 561

Step2:

LCM(1, 687) = 687

GCD(1, 687) = ( 1 x 687 ) / 687

= 1 / 687

= 1

So, Greatest Common Divisor of 561, 400, 687 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 520, 567, 887
• GCD of 532, 666, 341
• GCD of 364, 821, 927
• GCD of 673, 201, 999
• GCD of 698, 632, 499

Given numbers are 561, 400, 687
The greatest common divisor of numbers 561, 400, 687 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 561, 400, 687 is 1.

1. What is the GCD of 561, 400, 687?

GCD of given numbers 561, 400, 687 is 1

2. How to calculate the greatest common divisor of 561, 400, 687?

We can find the highest common divisor of 561, 400, 687 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, 400, 687 i.e 1.

3. How can I use the GCD of 561, 400, 687Calculator?

Out the numbers 561, 400, 687 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.