GCD of 655, 118, 68, 220 Calculator

Given Input numbers are 655, 118, 68, 220

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 118

List of positive integer divisors of 118 that divides 118 without a remainder.

1, 2, 59, 118

Divisors of 68

List of positive integer divisors of 68 that divides 68 without a remainder.

1, 2, 4, 17, 34, 68

Divisors of 220

List of positive integer divisors of 220 that divides 220 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

Greatest Common Divisior

We found the divisors of 655, 118, 68, 220 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 655, 118, 68, 220 is 1.

Therefore, GCD of numbers 655, 118, 68, 220 is 1

Given Input Data is 655, 118, 68, 220

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

Prime Factorization of 655 is 5 x 131

Prime Factorization of 118 is 2 x 59

Prime Factorization of 68 is 2 x 2 x 17

Prime Factorization of 220 is 2 x 2 x 5 x 11

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, 118) = 77290

GCD(655, 118) = ( 655 x 118 ) / 77290

GCD(655, 118) = 77290 / 77290

GCD(655, 118) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 68

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

LCM(1, 68) = 68

GCD(1, 68) = ( 1 x 68 ) / 68

GCD(1, 68) = 68 / 68

GCD(1, 68) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 220

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

LCM(1, 220) = 220

GCD(1, 220) = ( 1 x 220 ) / 220

GCD(1, 220) = 220 / 220

GCD(1, 220) = 1

GCD of 655, 118, 68, 220 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 171, 679, 10, 665
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• GCD of 848, 702, 38, 727

1. What is the GCD of 655, 118, 68, 220?

GCD of 655, 118, 68, 220 is 1

2. Where do I get the detailed procedure to find GCD of 655, 118, 68, 220?

You can find a detailed procedure to find GCD of 655, 118, 68, 220 on our page.

3. How to find GCD of 655, 118, 68, 220 on a calculator?

You can find the GCD of 655, 118, 68, 220 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.