GCD of 717, 646, 128, 429 Calculator

Given Input numbers are 717, 646, 128, 429

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

Divisors of 717

List of positive integer divisors of 717 that divides 717 without a remainder.

1, 3, 239, 717

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 429

List of positive integer divisors of 429 that divides 429 without a remainder.

1, 3, 11, 13, 33, 39, 143, 429

Greatest Common Divisior

We found the divisors of 717, 646, 128, 429 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 717, 646, 128, 429 is 1.

Therefore, GCD of numbers 717, 646, 128, 429 is 1

Given Input Data is 717, 646, 128, 429

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

Prime Factorization of 717 is 3 x 239

Prime Factorization of 646 is 2 x 17 x 19

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 429 is 3 x 11 x 13

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(717, 646) = 463182

GCD(717, 646) = ( 717 x 646 ) / 463182

GCD(717, 646) = 463182 / 463182

GCD(717, 646) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 128

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

LCM(1, 128) = 128

GCD(1, 128) = ( 1 x 128 ) / 128

GCD(1, 128) = 128 / 128

GCD(1, 128) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 429

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

LCM(1, 429) = 429

GCD(1, 429) = ( 1 x 429 ) / 429

GCD(1, 429) = 429 / 429

GCD(1, 429) = 1

GCD of 717, 646, 128, 429 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 254, 904, 791, 976
• GCD of 129, 571, 838, 504
• GCD of 836, 471, 642, 581
• GCD of 195, 807, 935, 663
• GCD of 323, 589, 541, 557

1. What is the GCD of 717, 646, 128, 429?

GCD of 717, 646, 128, 429 is 1

2. Where do I get the detailed procedure to find GCD of 717, 646, 128, 429?

You can find a detailed procedure to find GCD of 717, 646, 128, 429 on our page.

3. How to find GCD of 717, 646, 128, 429 on a calculator?

You can find the GCD of 717, 646, 128, 429 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.