GCD of 428, 860, 85, 812 Calculator

Given Input numbers are 428, 860, 85, 812

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

Divisors of 428

List of positive integer divisors of 428 that divides 428 without a remainder.

1, 2, 4, 107, 214, 428

Divisors of 860

List of positive integer divisors of 860 that divides 860 without a remainder.

1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

Divisors of 85

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

1, 5, 17, 85

Divisors of 812

List of positive integer divisors of 812 that divides 812 without a remainder.

1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812

Greatest Common Divisior

We found the divisors of 428, 860, 85, 812 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 428, 860, 85, 812 is 1.

Therefore, GCD of numbers 428, 860, 85, 812 is 1

Given Input Data is 428, 860, 85, 812

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

Prime Factorization of 428 is 2 x 2 x 107

Prime Factorization of 860 is 2 x 2 x 5 x 43

Prime Factorization of 85 is 5 x 17

Prime Factorization of 812 is 2 x 2 x 7 x 29

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(428, 860) = 92020

GCD(428, 860) = ( 428 x 860 ) / 92020

GCD(428, 860) = 368080 / 92020

GCD(428, 860) = 4

Step2:

Here we consider the GCD from the above i.e. 4 as first number and the next as 85

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

LCM(4, 85) = 340

GCD(4, 85) = ( 4 x 85 ) / 340

GCD(4, 85) = 340 / 340

GCD(4, 85) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 812

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

LCM(1, 812) = 812

GCD(1, 812) = ( 1 x 812 ) / 812

GCD(1, 812) = 812 / 812

GCD(1, 812) = 1

GCD of 428, 860, 85, 812 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 725, 272, 63, 188
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• GCD of 251, 577, 41, 872

1. What is the GCD of 428, 860, 85, 812?

GCD of 428, 860, 85, 812 is 1

2. Where do I get the detailed procedure to find GCD of 428, 860, 85, 812?

You can find a detailed procedure to find GCD of 428, 860, 85, 812 on our page.

3. How to find GCD of 428, 860, 85, 812 on a calculator?

You can find the GCD of 428, 860, 85, 812 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.