GCD of 812, 402, 485, 154 Calculator

Given Input numbers are 812, 402, 485, 154

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

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

Divisors of 402

List of positive integer divisors of 402 that divides 402 without a remainder.

1, 2, 3, 6, 67, 134, 201, 402

Divisors of 485

List of positive integer divisors of 485 that divides 485 without a remainder.

1, 5, 97, 485

Divisors of 154

List of positive integer divisors of 154 that divides 154 without a remainder.

1, 2, 7, 11, 14, 22, 77, 154

Greatest Common Divisior

We found the divisors of 812, 402, 485, 154 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 812, 402, 485, 154 is 1.

Therefore, GCD of numbers 812, 402, 485, 154 is 1

Given Input Data is 812, 402, 485, 154

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

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

Prime Factorization of 402 is 2 x 3 x 67

Prime Factorization of 485 is 5 x 97

Prime Factorization of 154 is 2 x 7 x 11

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(812, 402) = 163212

GCD(812, 402) = ( 812 x 402 ) / 163212

GCD(812, 402) = 326424 / 163212

GCD(812, 402) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 485

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

LCM(2, 485) = 970

GCD(2, 485) = ( 2 x 485 ) / 970

GCD(2, 485) = 970 / 970

GCD(2, 485) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 154

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

LCM(1, 154) = 154

GCD(1, 154) = ( 1 x 154 ) / 154

GCD(1, 154) = 154 / 154

GCD(1, 154) = 1

GCD of 812, 402, 485, 154 is 1

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1. What is the GCD of 812, 402, 485, 154?

GCD of 812, 402, 485, 154 is 1

2. Where do I get the detailed procedure to find GCD of 812, 402, 485, 154?

You can find a detailed procedure to find GCD of 812, 402, 485, 154 on our page.

3. How to find GCD of 812, 402, 485, 154 on a calculator?

You can find the GCD of 812, 402, 485, 154 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.