GCD of 165, 468, 64, 644 Calculator

Given Input numbers are 165, 468, 64, 644

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 165

List of positive integer divisors of 165 that divides 165 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165

Divisors of 468

List of positive integer divisors of 468 that divides 468 without a remainder.

1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468

Divisors of 64

List of positive integer divisors of 64 that divides 64 without a remainder.

1, 2, 4, 8, 16, 32, 64

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Greatest Common Divisior

We found the divisors of 165, 468, 64, 644 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 165, 468, 64, 644 is 1.

Therefore, GCD of numbers 165, 468, 64, 644 is 1

Given Input Data is 165, 468, 64, 644

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 165 is 3 x 5 x 11

Prime Factorization of 468 is 2 x 2 x 3 x 3 x 13

Prime Factorization of 64 is 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 644 is 2 x 2 x 7 x 23

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

Step1:

Let's calculate the GCD of first two numbers

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

LCM(165, 468) = 25740

GCD(165, 468) = ( 165 x 468 ) / 25740

GCD(165, 468) = 77220 / 25740

GCD(165, 468) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 64

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

LCM(3, 64) = 192

GCD(3, 64) = ( 3 x 64 ) / 192

GCD(3, 64) = 192 / 192

GCD(3, 64) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 644

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

LCM(1, 644) = 644

GCD(1, 644) = ( 1 x 644 ) / 644

GCD(1, 644) = 644 / 644

GCD(1, 644) = 1

GCD of 165, 468, 64, 644 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 378, 333, 50, 670
• GCD of 877, 469, 15, 915
• GCD of 388, 901, 43, 536
• GCD of 473, 450, 42, 564
• GCD of 657, 809, 43, 591

1. What is the GCD of 165, 468, 64, 644?

GCD of 165, 468, 64, 644 is 1

2. Where do I get the detailed procedure to find GCD of 165, 468, 64, 644?

You can find a detailed procedure to find GCD of 165, 468, 64, 644 on our page.

3. How to find GCD of 165, 468, 64, 644 on a calculator?

You can find the GCD of 165, 468, 64, 644 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.