GCD of 179, 426, 28, 645 Calculator

Given Input numbers are 179, 426, 28, 645

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

Divisors of 179

List of positive integer divisors of 179 that divides 179 without a remainder.

1, 179

Divisors of 426

List of positive integer divisors of 426 that divides 426 without a remainder.

1, 2, 3, 6, 71, 142, 213, 426

Divisors of 28

List of positive integer divisors of 28 that divides 28 without a remainder.

1, 2, 4, 7, 14, 28

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Greatest Common Divisior

We found the divisors of 179, 426, 28, 645 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 179, 426, 28, 645 is 1.

Therefore, GCD of numbers 179, 426, 28, 645 is 1

Given Input Data is 179, 426, 28, 645

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

Prime Factorization of 179 is 179

Prime Factorization of 426 is 2 x 3 x 71

Prime Factorization of 28 is 2 x 2 x 7

Prime Factorization of 645 is 3 x 5 x 43

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(179, 426) = 76254

GCD(179, 426) = ( 179 x 426 ) / 76254

GCD(179, 426) = 76254 / 76254

GCD(179, 426) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 28

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

LCM(1, 28) = 28

GCD(1, 28) = ( 1 x 28 ) / 28

GCD(1, 28) = 28 / 28

GCD(1, 28) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 645

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

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

GCD(1, 645) = 645 / 645

GCD(1, 645) = 1

GCD of 179, 426, 28, 645 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 899, 918, 56, 307
• GCD of 373, 619, 32, 323
• GCD of 258, 459, 84, 856
• GCD of 827, 350, 21, 881
• GCD of 663, 324, 10, 778

1. What is the GCD of 179, 426, 28, 645?

GCD of 179, 426, 28, 645 is 1

2. Where do I get the detailed procedure to find GCD of 179, 426, 28, 645?

You can find a detailed procedure to find GCD of 179, 426, 28, 645 on our page.

3. How to find GCD of 179, 426, 28, 645 on a calculator?

You can find the GCD of 179, 426, 28, 645 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.