GCD of 691, 210, 135, 656 Calculator

Given Input numbers are 691, 210, 135, 656

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

Divisors of 691

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

1, 691

Divisors of 210

List of positive integer divisors of 210 that divides 210 without a remainder.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210

Divisors of 135

List of positive integer divisors of 135 that divides 135 without a remainder.

1, 3, 5, 9, 15, 27, 45, 135

Divisors of 656

List of positive integer divisors of 656 that divides 656 without a remainder.

1, 2, 4, 8, 16, 41, 82, 164, 328, 656

Greatest Common Divisior

We found the divisors of 691, 210, 135, 656 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 691, 210, 135, 656 is 1.

Therefore, GCD of numbers 691, 210, 135, 656 is 1

Given Input Data is 691, 210, 135, 656

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

Prime Factorization of 691 is 691

Prime Factorization of 210 is 2 x 3 x 5 x 7

Prime Factorization of 135 is 3 x 3 x 3 x 5

Prime Factorization of 656 is 2 x 2 x 2 x 2 x 41

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(691, 210) = 145110

GCD(691, 210) = ( 691 x 210 ) / 145110

GCD(691, 210) = 145110 / 145110

GCD(691, 210) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 135

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

LCM(1, 135) = 135

GCD(1, 135) = ( 1 x 135 ) / 135

GCD(1, 135) = 135 / 135

GCD(1, 135) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 656

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

LCM(1, 656) = 656

GCD(1, 656) = ( 1 x 656 ) / 656

GCD(1, 656) = 656 / 656

GCD(1, 656) = 1

GCD of 691, 210, 135, 656 is 1

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1. What is the GCD of 691, 210, 135, 656?

GCD of 691, 210, 135, 656 is 1

2. Where do I get the detailed procedure to find GCD of 691, 210, 135, 656?

You can find a detailed procedure to find GCD of 691, 210, 135, 656 on our page.

3. How to find GCD of 691, 210, 135, 656 on a calculator?

You can find the GCD of 691, 210, 135, 656 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.