GCD of 660, 617, 55, 805 Calculator

Given Input numbers are 660, 617, 55, 805

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 617

List of positive integer divisors of 617 that divides 617 without a remainder.

1, 617

Divisors of 55

List of positive integer divisors of 55 that divides 55 without a remainder.

1, 5, 11, 55

Divisors of 805

List of positive integer divisors of 805 that divides 805 without a remainder.

1, 5, 7, 23, 35, 115, 161, 805

Greatest Common Divisior

We found the divisors of 660, 617, 55, 805 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 660, 617, 55, 805 is 1.

Therefore, GCD of numbers 660, 617, 55, 805 is 1

Given Input Data is 660, 617, 55, 805

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 617 is 617

Prime Factorization of 55 is 5 x 11

Prime Factorization of 805 is 5 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(660, 617) = 407220

GCD(660, 617) = ( 660 x 617 ) / 407220

GCD(660, 617) = 407220 / 407220

GCD(660, 617) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 55

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

LCM(1, 55) = 55

GCD(1, 55) = ( 1 x 55 ) / 55

GCD(1, 55) = 55 / 55

GCD(1, 55) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 805

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

LCM(1, 805) = 805

GCD(1, 805) = ( 1 x 805 ) / 805

GCD(1, 805) = 805 / 805

GCD(1, 805) = 1

GCD of 660, 617, 55, 805 is 1

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• GCD of 849, 116, 30, 327
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1. What is the GCD of 660, 617, 55, 805?

GCD of 660, 617, 55, 805 is 1

2. Where do I get the detailed procedure to find GCD of 660, 617, 55, 805?

You can find a detailed procedure to find GCD of 660, 617, 55, 805 on our page.

3. How to find GCD of 660, 617, 55, 805 on a calculator?

You can find the GCD of 660, 617, 55, 805 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.