GCD of 561, 669, 968, 618 Calculator

Given Input numbers are 561, 669, 968, 618

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

Divisors of 561

List of positive integer divisors of 561 that divides 561 without a remainder.

1, 3, 11, 17, 33, 51, 187, 561

Divisors of 669

List of positive integer divisors of 669 that divides 669 without a remainder.

1, 3, 223, 669

Divisors of 968

List of positive integer divisors of 968 that divides 968 without a remainder.

1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968

Divisors of 618

List of positive integer divisors of 618 that divides 618 without a remainder.

1, 2, 3, 6, 103, 206, 309, 618

Greatest Common Divisior

We found the divisors of 561, 669, 968, 618 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 561, 669, 968, 618 is 1.

Therefore, GCD of numbers 561, 669, 968, 618 is 1

Given Input Data is 561, 669, 968, 618

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

Prime Factorization of 561 is 3 x 11 x 17

Prime Factorization of 669 is 3 x 223

Prime Factorization of 968 is 2 x 2 x 2 x 11 x 11

Prime Factorization of 618 is 2 x 3 x 103

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(561, 669) = 125103

GCD(561, 669) = ( 561 x 669 ) / 125103

GCD(561, 669) = 375309 / 125103

GCD(561, 669) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 968

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

LCM(3, 968) = 2904

GCD(3, 968) = ( 3 x 968 ) / 2904

GCD(3, 968) = 2904 / 2904

GCD(3, 968) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 618

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

LCM(1, 618) = 618

GCD(1, 618) = ( 1 x 618 ) / 618

GCD(1, 618) = 618 / 618

GCD(1, 618) = 1

GCD of 561, 669, 968, 618 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 888, 711, 695, 409
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• GCD of 978, 100, 891, 972
• GCD of 751, 208, 222, 190
• GCD of 364, 309, 162, 539

1. What is the GCD of 561, 669, 968, 618?

GCD of 561, 669, 968, 618 is 1

2. Where do I get the detailed procedure to find GCD of 561, 669, 968, 618?

You can find a detailed procedure to find GCD of 561, 669, 968, 618 on our page.

3. How to find GCD of 561, 669, 968, 618 on a calculator?

You can find the GCD of 561, 669, 968, 618 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.