GCD of 247, 303, 664, 691 Calculator

Given Input numbers are 247, 303, 664, 691

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

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

Divisors of 303

List of positive integer divisors of 303 that divides 303 without a remainder.

1, 3, 101, 303

Divisors of 664

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

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

Divisors of 691

List of positive integer divisors of 691 that divides 691 without a remainder.

1, 691

Greatest Common Divisior

We found the divisors of 247, 303, 664, 691 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 247, 303, 664, 691 is 1.

Therefore, GCD of numbers 247, 303, 664, 691 is 1

Given Input Data is 247, 303, 664, 691

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

Prime Factorization of 247 is 13 x 19

Prime Factorization of 303 is 3 x 101

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

Prime Factorization of 691 is 691

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(247, 303) = 74841

GCD(247, 303) = ( 247 x 303 ) / 74841

GCD(247, 303) = 74841 / 74841

GCD(247, 303) = 1

Step2:

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

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 691

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

LCM(1, 691) = 691

GCD(1, 691) = ( 1 x 691 ) / 691

GCD(1, 691) = 691 / 691

GCD(1, 691) = 1

GCD of 247, 303, 664, 691 is 1

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1. What is the GCD of 247, 303, 664, 691?

GCD of 247, 303, 664, 691 is 1

2. Where do I get the detailed procedure to find GCD of 247, 303, 664, 691?

You can find a detailed procedure to find GCD of 247, 303, 664, 691 on our page.

3. How to find GCD of 247, 303, 664, 691 on a calculator?

You can find the GCD of 247, 303, 664, 691 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.