GCD of 661, 285, 61, 797 Calculator

Given Input numbers are 661, 285, 61, 797

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 285

List of positive integer divisors of 285 that divides 285 without a remainder.

1, 3, 5, 15, 19, 57, 95, 285

Divisors of 61

List of positive integer divisors of 61 that divides 61 without a remainder.

1, 61

Divisors of 797

List of positive integer divisors of 797 that divides 797 without a remainder.

1, 797

Greatest Common Divisior

We found the divisors of 661, 285, 61, 797 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 285, 61, 797 is 1.

Therefore, GCD of numbers 661, 285, 61, 797 is 1

Given Input Data is 661, 285, 61, 797

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

Prime Factorization of 661 is 661

Prime Factorization of 285 is 3 x 5 x 19

Prime Factorization of 61 is 61

Prime Factorization of 797 is 797

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, 285) = 188385

GCD(661, 285) = ( 661 x 285 ) / 188385

GCD(661, 285) = 188385 / 188385

GCD(661, 285) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 61

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

LCM(1, 61) = 61

GCD(1, 61) = ( 1 x 61 ) / 61

GCD(1, 61) = 61 / 61

GCD(1, 61) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 797

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

LCM(1, 797) = 797

GCD(1, 797) = ( 1 x 797 ) / 797

GCD(1, 797) = 797 / 797

GCD(1, 797) = 1

GCD of 661, 285, 61, 797 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 864, 275, 34, 586
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1. What is the GCD of 661, 285, 61, 797?

GCD of 661, 285, 61, 797 is 1

2. Where do I get the detailed procedure to find GCD of 661, 285, 61, 797?

You can find a detailed procedure to find GCD of 661, 285, 61, 797 on our page.

3. How to find GCD of 661, 285, 61, 797 on a calculator?

You can find the GCD of 661, 285, 61, 797 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.