GCD of 865, 491, 77, 664 Calculator

Given Input numbers are 865, 491, 77, 664

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

Divisors of 865

List of positive integer divisors of 865 that divides 865 without a remainder.

1, 5, 173, 865

Divisors of 491

List of positive integer divisors of 491 that divides 491 without a remainder.

1, 491

Divisors of 77

List of positive integer divisors of 77 that divides 77 without a remainder.

1, 7, 11, 77

Divisors of 664

List of positive integer divisors of 664 that divides 664 without a remainder.

1, 2, 4, 8, 83, 166, 332, 664

Greatest Common Divisior

We found the divisors of 865, 491, 77, 664 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 865, 491, 77, 664 is 1.

Therefore, GCD of numbers 865, 491, 77, 664 is 1

Given Input Data is 865, 491, 77, 664

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

Prime Factorization of 865 is 5 x 173

Prime Factorization of 491 is 491

Prime Factorization of 77 is 7 x 11

Prime Factorization of 664 is 2 x 2 x 2 x 83

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(865, 491) = 424715

GCD(865, 491) = ( 865 x 491 ) / 424715

GCD(865, 491) = 424715 / 424715

GCD(865, 491) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 77

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

LCM(1, 77) = 77

GCD(1, 77) = ( 1 x 77 ) / 77

GCD(1, 77) = 77 / 77

GCD(1, 77) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 664

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

LCM(1, 664) = 664

GCD(1, 664) = ( 1 x 664 ) / 664

GCD(1, 664) = 664 / 664

GCD(1, 664) = 1

GCD of 865, 491, 77, 664 is 1

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1. What is the GCD of 865, 491, 77, 664?

GCD of 865, 491, 77, 664 is 1

2. Where do I get the detailed procedure to find GCD of 865, 491, 77, 664?

You can find a detailed procedure to find GCD of 865, 491, 77, 664 on our page.

3. How to find GCD of 865, 491, 77, 664 on a calculator?

You can find the GCD of 865, 491, 77, 664 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.