GCD of 428, 862, 85, 878 Calculator

Given Input numbers are 428, 862, 85, 878

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 862

List of positive integer divisors of 862 that divides 862 without a remainder.

1, 2, 431, 862

Divisors of 85

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

1, 5, 17, 85

Divisors of 878

List of positive integer divisors of 878 that divides 878 without a remainder.

1, 2, 439, 878

Greatest Common Divisior

We found the divisors of 428, 862, 85, 878 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 428, 862, 85, 878 is 1.

Therefore, GCD of numbers 428, 862, 85, 878 is 1

Given Input Data is 428, 862, 85, 878

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 862 is 2 x 431

Prime Factorization of 85 is 5 x 17

Prime Factorization of 878 is 2 x 439

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, 862) = 184468

GCD(428, 862) = ( 428 x 862 ) / 184468

GCD(428, 862) = 368936 / 184468

GCD(428, 862) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 85

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

LCM(2, 85) = 170

GCD(2, 85) = ( 2 x 85 ) / 170

GCD(2, 85) = 170 / 170

GCD(2, 85) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 878

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

LCM(1, 878) = 878

GCD(1, 878) = ( 1 x 878 ) / 878

GCD(1, 878) = 878 / 878

GCD(1, 878) = 1

GCD of 428, 862, 85, 878 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 329, 151, 89, 885
• GCD of 858, 733, 59, 486
• GCD of 431, 346, 81, 192
• GCD of 572, 448, 87, 912
• GCD of 155, 835, 59, 506

1. What is the GCD of 428, 862, 85, 878?

GCD of 428, 862, 85, 878 is 1

2. Where do I get the detailed procedure to find GCD of 428, 862, 85, 878?

You can find a detailed procedure to find GCD of 428, 862, 85, 878 on our page.

3. How to find GCD of 428, 862, 85, 878 on a calculator?

You can find the GCD of 428, 862, 85, 878 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.