GCD of 65, 442, 402, 681 Calculator

Given Input numbers are 65, 442, 402, 681

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

Divisors of 65

List of positive integer divisors of 65 that divides 65 without a remainder.

1, 5, 13, 65

Divisors of 442

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

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

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 681

List of positive integer divisors of 681 that divides 681 without a remainder.

1, 3, 227, 681

Greatest Common Divisior

We found the divisors of 65, 442, 402, 681 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 65, 442, 402, 681 is 1.

Therefore, GCD of numbers 65, 442, 402, 681 is 1

Given Input Data is 65, 442, 402, 681

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

Prime Factorization of 65 is 5 x 13

Prime Factorization of 442 is 2 x 13 x 17

Prime Factorization of 402 is 2 x 3 x 67

Prime Factorization of 681 is 3 x 227

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(65, 442) = 2210

GCD(65, 442) = ( 65 x 442 ) / 2210

GCD(65, 442) = 28730 / 2210

GCD(65, 442) = 13

Step2:

Here we consider the GCD from the above i.e. 13 as first number and the next as 402

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

LCM(13, 402) = 5226

GCD(13, 402) = ( 13 x 402 ) / 5226

GCD(13, 402) = 5226 / 5226

GCD(13, 402) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 681

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

LCM(1, 681) = 681

GCD(1, 681) = ( 1 x 681 ) / 681

GCD(1, 681) = 681 / 681

GCD(1, 681) = 1

GCD of 65, 442, 402, 681 is 1

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1. What is the GCD of 65, 442, 402, 681?

GCD of 65, 442, 402, 681 is 1

2. Where do I get the detailed procedure to find GCD of 65, 442, 402, 681?

You can find a detailed procedure to find GCD of 65, 442, 402, 681 on our page.

3. How to find GCD of 65, 442, 402, 681 on a calculator?

You can find the GCD of 65, 442, 402, 681 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.