GCD of 25, 691, 644, 847 Calculator

Given Input numbers are 25, 691, 644, 847

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

Divisors of 25

List of positive integer divisors of 25 that divides 25 without a remainder.

1, 5, 25

Divisors of 691

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

1, 691

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 847

List of positive integer divisors of 847 that divides 847 without a remainder.

1, 7, 11, 77, 121, 847

Greatest Common Divisior

We found the divisors of 25, 691, 644, 847 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 25, 691, 644, 847 is 1.

Therefore, GCD of numbers 25, 691, 644, 847 is 1

Given Input Data is 25, 691, 644, 847

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

Prime Factorization of 25 is 5 x 5

Prime Factorization of 691 is 691

Prime Factorization of 644 is 2 x 2 x 7 x 23

Prime Factorization of 847 is 7 x 11 x 11

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(25, 691) = 17275

GCD(25, 691) = ( 25 x 691 ) / 17275

GCD(25, 691) = 17275 / 17275

GCD(25, 691) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 644

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

LCM(1, 644) = 644

GCD(1, 644) = ( 1 x 644 ) / 644

GCD(1, 644) = 644 / 644

GCD(1, 644) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 847

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

LCM(1, 847) = 847

GCD(1, 847) = ( 1 x 847 ) / 847

GCD(1, 847) = 847 / 847

GCD(1, 847) = 1

GCD of 25, 691, 644, 847 is 1

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• GCD of 74, 894, 145, 290
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1. What is the GCD of 25, 691, 644, 847?

GCD of 25, 691, 644, 847 is 1

2. Where do I get the detailed procedure to find GCD of 25, 691, 644, 847?

You can find a detailed procedure to find GCD of 25, 691, 644, 847 on our page.

3. How to find GCD of 25, 691, 644, 847 on a calculator?

You can find the GCD of 25, 691, 644, 847 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.