GCD of 402, 217, 68, 385 Calculator

Given Input numbers are 402, 217, 68, 385

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

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 217

List of positive integer divisors of 217 that divides 217 without a remainder.

1, 7, 31, 217

Divisors of 68

List of positive integer divisors of 68 that divides 68 without a remainder.

1, 2, 4, 17, 34, 68

Divisors of 385

List of positive integer divisors of 385 that divides 385 without a remainder.

1, 5, 7, 11, 35, 55, 77, 385

Greatest Common Divisior

We found the divisors of 402, 217, 68, 385 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 402, 217, 68, 385 is 1.

Therefore, GCD of numbers 402, 217, 68, 385 is 1

Given Input Data is 402, 217, 68, 385

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

Prime Factorization of 402 is 2 x 3 x 67

Prime Factorization of 217 is 7 x 31

Prime Factorization of 68 is 2 x 2 x 17

Prime Factorization of 385 is 5 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(402, 217) = 87234

GCD(402, 217) = ( 402 x 217 ) / 87234

GCD(402, 217) = 87234 / 87234

GCD(402, 217) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 68

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

LCM(1, 68) = 68

GCD(1, 68) = ( 1 x 68 ) / 68

GCD(1, 68) = 68 / 68

GCD(1, 68) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 385

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

LCM(1, 385) = 385

GCD(1, 385) = ( 1 x 385 ) / 385

GCD(1, 385) = 385 / 385

GCD(1, 385) = 1

GCD of 402, 217, 68, 385 is 1

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• GCD of 991, 333, 78, 142
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1. What is the GCD of 402, 217, 68, 385?

GCD of 402, 217, 68, 385 is 1

2. Where do I get the detailed procedure to find GCD of 402, 217, 68, 385?

You can find a detailed procedure to find GCD of 402, 217, 68, 385 on our page.

3. How to find GCD of 402, 217, 68, 385 on a calculator?

You can find the GCD of 402, 217, 68, 385 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.