GCD of 245, 436, 691 Calculator

Given Input numbers are 245, 436, 691

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

Divisors of 245

List of positive integer divisors of 245 that divides 245 without a remainder.

1, 5, 7, 35, 49, 245

Divisors of 436

List of positive integer divisors of 436 that divides 436 without a remainder.

1, 2, 4, 109, 218, 436

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 245, 436, 691 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 245, 436, 691 is 1.

Therefore, GCD of numbers 245, 436, 691 is 1

Given Input Data is 245, 436, 691

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

Prime Factorization of 245 is 5 x 7 x 7

Prime Factorization of 436 is 2 x 2 x 109

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(245, 436) = 106820

GCD(245, 436) = ( 245 x 436 ) / 106820

GCD(245, 436) = 106820 / 106820

GCD(245, 436) = 1

Step2:

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 245, 436, 691 is 1

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1. What is the GCD of 245, 436, 691?

GCD of 245, 436, 691 is 1

2. Where do I get the detailed procedure to find GCD of 245, 436, 691?

You can find a detailed procedure to find GCD of 245, 436, 691 on our page.

3. How to find GCD of 245, 436, 691 on a calculator?

You can find the GCD of 245, 436, 691 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.