GCD of 155, 328, 85, 442 Calculator

Given Input numbers are 155, 328, 85, 442

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

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Divisors of 328

List of positive integer divisors of 328 that divides 328 without a remainder.

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

Divisors of 85

List of positive integer divisors of 85 that divides 85 without a remainder.

1, 5, 17, 85

Divisors of 442

List of positive integer divisors of 442 that divides 442 without a remainder.

1, 2, 13, 17, 26, 34, 221, 442

Greatest Common Divisior

We found the divisors of 155, 328, 85, 442 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 155, 328, 85, 442 is 1.

Therefore, GCD of numbers 155, 328, 85, 442 is 1

Given Input Data is 155, 328, 85, 442

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

Prime Factorization of 155 is 5 x 31

Prime Factorization of 328 is 2 x 2 x 2 x 41

Prime Factorization of 85 is 5 x 17

Prime Factorization of 442 is 2 x 13 x 17

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(155, 328) = 50840

GCD(155, 328) = ( 155 x 328 ) / 50840

GCD(155, 328) = 50840 / 50840

GCD(155, 328) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 85

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

LCM(1, 85) = 85

GCD(1, 85) = ( 1 x 85 ) / 85

GCD(1, 85) = 85 / 85

GCD(1, 85) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 442

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

LCM(1, 442) = 442

GCD(1, 442) = ( 1 x 442 ) / 442

GCD(1, 442) = 442 / 442

GCD(1, 442) = 1

GCD of 155, 328, 85, 442 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 594, 565, 98, 859
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• GCD of 260, 845, 42, 864
• GCD of 918, 620, 82, 309

1. What is the GCD of 155, 328, 85, 442?

GCD of 155, 328, 85, 442 is 1

2. Where do I get the detailed procedure to find GCD of 155, 328, 85, 442?

You can find a detailed procedure to find GCD of 155, 328, 85, 442 on our page.

3. How to find GCD of 155, 328, 85, 442 on a calculator?

You can find the GCD of 155, 328, 85, 442 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.