GCD of 218, 390, 727, 655 Calculator

Given Input numbers are 218, 390, 727, 655

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

Divisors of 218 :

The positive integer divisors of 218 that completely divides 218 are.

1, 2, 109, 218

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 727 :

The positive integer divisors of 727 that completely divides 727 are.

1, 727

Divisors of 655 :

The positive integer divisors of 655 that completely divides 655 are.

1, 5, 131, 655

GCD of numbers is the greatest common divisor

So, the GCD (218, 390, 727, 655) = 1.

Given numbers are 218, 390, 727, 655

The list of prime factors of all numbers are

Prime factors of 218 are 2 x 109

Prime factors of 390 are 2 x 3 x 5 x 13

Prime factors of 727 are 727

Prime factors of 655 are 5 x 131

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

Given numbers are 218, 390, 727, 655

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

Apply this formula for all numbers.

Step1:

LCM(218, 390) = 42510

GCD(218, 390) = ( 218 x 390 ) / 42510

= 218 / 390

= 218

Step2:

LCM(2, 727) = 1454

GCD(2, 727) = ( 2 x 727 ) / 1454

= 2 / 727

= 2

Step3:

LCM(1, 655) = 655

GCD(1, 655) = ( 1 x 655 ) / 655

= 1 / 655

= 1

So, Greatest Common Divisor of 218, 390, 727, 655 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 440, 141, 166, 406
• GCD of 684, 899, 340, 162
• GCD of 380, 112, 809, 541
• GCD of 838, 637, 725, 383
• GCD of 353, 163, 486, 599

Given numbers are 218, 390, 727, 655
The greatest common divisor of numbers 218, 390, 727, 655 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 218, 390, 727, 655 is 1.

1. What is the GCD of 218, 390, 727, 655?

GCD of given numbers 218, 390, 727, 655 is 1

2. How to calculate the greatest common divisor of 218, 390, 727, 655?

We can find the highest common divisor of 218, 390, 727, 655 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 218, 390, 727, 655 i.e 1.

3. How can I use the GCD of 218, 390, 727, 655Calculator?

Out the numbers 218, 390, 727, 655 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.