GCD of 661, 643, 89, 513 Calculator

Given Input numbers are 661, 643, 89, 513

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 643

List of positive integer divisors of 643 that divides 643 without a remainder.

1, 643

Divisors of 89

List of positive integer divisors of 89 that divides 89 without a remainder.

1, 89

Divisors of 513

List of positive integer divisors of 513 that divides 513 without a remainder.

1, 3, 9, 19, 27, 57, 171, 513

Greatest Common Divisior

We found the divisors of 661, 643, 89, 513 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 643, 89, 513 is 1.

Therefore, GCD of numbers 661, 643, 89, 513 is 1

Given Input Data is 661, 643, 89, 513

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

Prime Factorization of 661 is 661

Prime Factorization of 643 is 643

Prime Factorization of 89 is 89

Prime Factorization of 513 is 3 x 3 x 3 x 19

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, 643) = 425023

GCD(661, 643) = ( 661 x 643 ) / 425023

GCD(661, 643) = 425023 / 425023

GCD(661, 643) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 89

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

LCM(1, 89) = 89

GCD(1, 89) = ( 1 x 89 ) / 89

GCD(1, 89) = 89 / 89

GCD(1, 89) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 513

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

LCM(1, 513) = 513

GCD(1, 513) = ( 1 x 513 ) / 513

GCD(1, 513) = 513 / 513

GCD(1, 513) = 1

GCD of 661, 643, 89, 513 is 1

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• GCD of 431, 573, 72, 788
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1. What is the GCD of 661, 643, 89, 513?

GCD of 661, 643, 89, 513 is 1

2. Where do I get the detailed procedure to find GCD of 661, 643, 89, 513?

You can find a detailed procedure to find GCD of 661, 643, 89, 513 on our page.

3. How to find GCD of 661, 643, 89, 513 on a calculator?

You can find the GCD of 661, 643, 89, 513 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.