GCD of 663, 720, 330, 638 Calculator

Given Input numbers are 663, 720, 330, 638

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

Divisors of 663 :

The positive integer divisors of 663 that completely divides 663 are.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 720 :

The positive integer divisors of 720 that completely divides 720 are.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

Divisors of 330 :

The positive integer divisors of 330 that completely divides 330 are.

1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330

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 (663, 720, 330, 638) = 1.

Given numbers are 663, 720, 330, 638

The list of prime factors of all numbers are

Prime factors of 663 are 3 x 13 x 17

Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5

Prime factors of 330 are 2 x 3 x 5 x 11

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 663, 720, 330, 638

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

Apply this formula for all numbers.

Step1:

LCM(663, 720) = 159120

GCD(663, 720) = ( 663 x 720 ) / 159120

= 663 / 720

= 663

Step2:

LCM(3, 330) = 330

GCD(3, 330) = ( 3 x 330 ) / 330

= 3 / 330

= 3

Step3:

LCM(3, 638) = 1914

GCD(3, 638) = ( 3 x 638 ) / 1914

= 3 / 638

= 3

So, Greatest Common Divisor of 663, 720, 330, 638 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 989, 154, 522, 525
• GCD of 398, 659, 896, 741
• GCD of 527, 188, 829, 929
• GCD of 228, 696, 238, 463
• GCD of 310, 361, 603, 311

Given numbers are 663, 720, 330, 638
The greatest common divisor of numbers 663, 720, 330, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 663, 720, 330, 638 is 1.

1. What is the GCD of 663, 720, 330, 638?

GCD of given numbers 663, 720, 330, 638 is 1

2. How to calculate the greatest common divisor of 663, 720, 330, 638?

We can find the highest common divisor of 663, 720, 330, 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 663, 720, 330, 638 i.e 1.

3. How can I use the GCD of 663, 720, 330, 638Calculator?

Out the numbers 663, 720, 330, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.