GCD of 661, 261, 453, 163 Calculator

Given Input numbers are 661, 261, 453, 163

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 261

List of positive integer divisors of 261 that divides 261 without a remainder.

1, 3, 9, 29, 87, 261

Divisors of 453

List of positive integer divisors of 453 that divides 453 without a remainder.

1, 3, 151, 453

Divisors of 163

List of positive integer divisors of 163 that divides 163 without a remainder.

1, 163

Greatest Common Divisior

We found the divisors of 661, 261, 453, 163 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 261, 453, 163 is 1.

Therefore, GCD of numbers 661, 261, 453, 163 is 1

Given Input Data is 661, 261, 453, 163

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

Prime Factorization of 661 is 661

Prime Factorization of 261 is 3 x 3 x 29

Prime Factorization of 453 is 3 x 151

Prime Factorization of 163 is 163

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, 261) = 172521

GCD(661, 261) = ( 661 x 261 ) / 172521

GCD(661, 261) = 172521 / 172521

GCD(661, 261) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 453

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

LCM(1, 453) = 453

GCD(1, 453) = ( 1 x 453 ) / 453

GCD(1, 453) = 453 / 453

GCD(1, 453) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 163

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

LCM(1, 163) = 163

GCD(1, 163) = ( 1 x 163 ) / 163

GCD(1, 163) = 163 / 163

GCD(1, 163) = 1

GCD of 661, 261, 453, 163 is 1

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• GCD of 178, 256, 670, 803
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1. What is the GCD of 661, 261, 453, 163?

GCD of 661, 261, 453, 163 is 1

2. Where do I get the detailed procedure to find GCD of 661, 261, 453, 163?

You can find a detailed procedure to find GCD of 661, 261, 453, 163 on our page.

3. How to find GCD of 661, 261, 453, 163 on a calculator?

You can find the GCD of 661, 261, 453, 163 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.