GCD of 660, 325, 61, 664 Calculator

Given Input numbers are 660, 325, 61, 664

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

Divisors of 660

List of positive integer divisors of 660 that divides 660 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

Divisors of 325

List of positive integer divisors of 325 that divides 325 without a remainder.

1, 5, 13, 25, 65, 325

Divisors of 61

List of positive integer divisors of 61 that divides 61 without a remainder.

1, 61

Divisors of 664

List of positive integer divisors of 664 that divides 664 without a remainder.

1, 2, 4, 8, 83, 166, 332, 664

Greatest Common Divisior

We found the divisors of 660, 325, 61, 664 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 660, 325, 61, 664 is 1.

Therefore, GCD of numbers 660, 325, 61, 664 is 1

Given Input Data is 660, 325, 61, 664

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

Prime Factorization of 660 is 2 x 2 x 3 x 5 x 11

Prime Factorization of 325 is 5 x 5 x 13

Prime Factorization of 61 is 61

Prime Factorization of 664 is 2 x 2 x 2 x 83

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(660, 325) = 42900

GCD(660, 325) = ( 660 x 325 ) / 42900

GCD(660, 325) = 214500 / 42900

GCD(660, 325) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 61

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

LCM(5, 61) = 305

GCD(5, 61) = ( 5 x 61 ) / 305

GCD(5, 61) = 305 / 305

GCD(5, 61) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 664

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

LCM(1, 664) = 664

GCD(1, 664) = ( 1 x 664 ) / 664

GCD(1, 664) = 664 / 664

GCD(1, 664) = 1

GCD of 660, 325, 61, 664 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 900, 725, 84, 647
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• GCD of 481, 478, 86, 772

1. What is the GCD of 660, 325, 61, 664?

GCD of 660, 325, 61, 664 is 1

2. Where do I get the detailed procedure to find GCD of 660, 325, 61, 664?

You can find a detailed procedure to find GCD of 660, 325, 61, 664 on our page.

3. How to find GCD of 660, 325, 61, 664 on a calculator?

You can find the GCD of 660, 325, 61, 664 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.