GCD of 657, 855, 61, 555 Calculator

Given Input numbers are 657, 855, 61, 555

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

Divisors of 657

List of positive integer divisors of 657 that divides 657 without a remainder.

1, 3, 9, 73, 219, 657

Divisors of 855

List of positive integer divisors of 855 that divides 855 without a remainder.

1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

Divisors of 61

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

1, 61

Divisors of 555

List of positive integer divisors of 555 that divides 555 without a remainder.

1, 3, 5, 15, 37, 111, 185, 555

Greatest Common Divisior

We found the divisors of 657, 855, 61, 555 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 657, 855, 61, 555 is 1.

Therefore, GCD of numbers 657, 855, 61, 555 is 1

Given Input Data is 657, 855, 61, 555

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

Prime Factorization of 657 is 3 x 3 x 73

Prime Factorization of 855 is 3 x 3 x 5 x 19

Prime Factorization of 61 is 61

Prime Factorization of 555 is 3 x 5 x 37

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(657, 855) = 62415

GCD(657, 855) = ( 657 x 855 ) / 62415

GCD(657, 855) = 561735 / 62415

GCD(657, 855) = 9

Step2:

Here we consider the GCD from the above i.e. 9 as first number and the next as 61

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

LCM(9, 61) = 549

GCD(9, 61) = ( 9 x 61 ) / 549

GCD(9, 61) = 549 / 549

GCD(9, 61) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 555

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

LCM(1, 555) = 555

GCD(1, 555) = ( 1 x 555 ) / 555

GCD(1, 555) = 555 / 555

GCD(1, 555) = 1

GCD of 657, 855, 61, 555 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 273, 624, 10, 648
• GCD of 491, 257, 44, 766
• GCD of 748, 344, 52, 699
• GCD of 908, 391, 81, 760
• GCD of 833, 663, 36, 937

1. What is the GCD of 657, 855, 61, 555?

GCD of 657, 855, 61, 555 is 1

2. Where do I get the detailed procedure to find GCD of 657, 855, 61, 555?

You can find a detailed procedure to find GCD of 657, 855, 61, 555 on our page.

3. How to find GCD of 657, 855, 61, 555 on a calculator?

You can find the GCD of 657, 855, 61, 555 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.