GCD of 655, 625, 66, 855 Calculator

Given Input numbers are 655, 625, 66, 855

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

Divisors of 655

List of positive integer divisors of 655 that divides 655 without a remainder.

1, 5, 131, 655

Divisors of 625

List of positive integer divisors of 625 that divides 625 without a remainder.

1, 5, 25, 125, 625

Divisors of 66

List of positive integer divisors of 66 that divides 66 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66

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

Greatest Common Divisior

We found the divisors of 655, 625, 66, 855 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 655, 625, 66, 855 is 1.

Therefore, GCD of numbers 655, 625, 66, 855 is 1

Given Input Data is 655, 625, 66, 855

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

Prime Factorization of 655 is 5 x 131

Prime Factorization of 625 is 5 x 5 x 5 x 5

Prime Factorization of 66 is 2 x 3 x 11

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

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(655, 625) = 81875

GCD(655, 625) = ( 655 x 625 ) / 81875

GCD(655, 625) = 409375 / 81875

GCD(655, 625) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 66

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

LCM(5, 66) = 330

GCD(5, 66) = ( 5 x 66 ) / 330

GCD(5, 66) = 330 / 330

GCD(5, 66) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 855

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

LCM(1, 855) = 855

GCD(1, 855) = ( 1 x 855 ) / 855

GCD(1, 855) = 855 / 855

GCD(1, 855) = 1

GCD of 655, 625, 66, 855 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 372, 688, 33, 566
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• GCD of 357, 175, 12, 562
• GCD of 896, 391, 92, 140
• GCD of 264, 369, 88, 838

1. What is the GCD of 655, 625, 66, 855?

GCD of 655, 625, 66, 855 is 1

2. Where do I get the detailed procedure to find GCD of 655, 625, 66, 855?

You can find a detailed procedure to find GCD of 655, 625, 66, 855 on our page.

3. How to find GCD of 655, 625, 66, 855 on a calculator?

You can find the GCD of 655, 625, 66, 855 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.