GCD of 661, 833, 660, 820 Calculator

Given Input numbers are 661, 833, 660, 820

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

Divisors of 661

List of positive integer divisors of 661 that divides 661 without a remainder.

1, 661

Divisors of 833

List of positive integer divisors of 833 that divides 833 without a remainder.

1, 7, 17, 49, 119, 833

Divisors of 660

List of positive integer divisors of 660 that divides 660 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

Divisors of 820

List of positive integer divisors of 820 that divides 820 without a remainder.

1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

Greatest Common Divisior

We found the divisors of 661, 833, 660, 820 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 833, 660, 820 is 1.

Therefore, GCD of numbers 661, 833, 660, 820 is 1

Given Input Data is 661, 833, 660, 820

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

Prime Factorization of 661 is 661

Prime Factorization of 833 is 7 x 7 x 17

Prime Factorization of 660 is 2 x 2 x 3 x 5 x 11

Prime Factorization of 820 is 2 x 2 x 5 x 41

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(661, 833) = 550613

GCD(661, 833) = ( 661 x 833 ) / 550613

GCD(661, 833) = 550613 / 550613

GCD(661, 833) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 660

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

LCM(1, 660) = 660

GCD(1, 660) = ( 1 x 660 ) / 660

GCD(1, 660) = 660 / 660

GCD(1, 660) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 820

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

LCM(1, 820) = 820

GCD(1, 820) = ( 1 x 820 ) / 820

GCD(1, 820) = 820 / 820

GCD(1, 820) = 1

GCD of 661, 833, 660, 820 is 1

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1. What is the GCD of 661, 833, 660, 820?

GCD of 661, 833, 660, 820 is 1

2. Where do I get the detailed procedure to find GCD of 661, 833, 660, 820?

You can find a detailed procedure to find GCD of 661, 833, 660, 820 on our page.

3. How to find GCD of 661, 833, 660, 820 on a calculator?

You can find the GCD of 661, 833, 660, 820 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.