GCD of 682, 565, 645, 220 Calculator

Given Input numbers are 682, 565, 645, 220

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

Divisors of 682

List of positive integer divisors of 682 that divides 682 without a remainder.

1, 2, 11, 22, 31, 62, 341, 682

Divisors of 565

List of positive integer divisors of 565 that divides 565 without a remainder.

1, 5, 113, 565

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

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 682, 565, 645, 220 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 682, 565, 645, 220 is 1.

Therefore, GCD of numbers 682, 565, 645, 220 is 1

Given Input Data is 682, 565, 645, 220

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

Prime Factorization of 682 is 2 x 11 x 31

Prime Factorization of 565 is 5 x 113

Prime Factorization of 645 is 3 x 5 x 43

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(682, 565) = 385330

GCD(682, 565) = ( 682 x 565 ) / 385330

GCD(682, 565) = 385330 / 385330

GCD(682, 565) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 645

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

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

GCD(1, 645) = 645 / 645

GCD(1, 645) = 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 682, 565, 645, 220 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 630, 713, 473, 409
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• GCD of 338, 875, 720, 316

1. What is the GCD of 682, 565, 645, 220?

GCD of 682, 565, 645, 220 is 1

2. Where do I get the detailed procedure to find GCD of 682, 565, 645, 220?

You can find a detailed procedure to find GCD of 682, 565, 645, 220 on our page.

3. How to find GCD of 682, 565, 645, 220 on a calculator?

You can find the GCD of 682, 565, 645, 220 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.