GCD of 402, 721, 81, 107 Calculator

Given Input numbers are 402, 721, 81, 107

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 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 107

List of positive integer divisors of 107 that divides 107 without a remainder.

1, 107

Greatest Common Divisior

We found the divisors of 402, 721, 81, 107 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 402, 721, 81, 107 is 1.

Therefore, GCD of numbers 402, 721, 81, 107 is 1

Given Input Data is 402, 721, 81, 107

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 721 is 7 x 103

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 107 is 107

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, 721) = 289842

GCD(402, 721) = ( 402 x 721 ) / 289842

GCD(402, 721) = 289842 / 289842

GCD(402, 721) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 81

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

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

GCD(1, 81) = 81 / 81

GCD(1, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 107

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

LCM(1, 107) = 107

GCD(1, 107) = ( 1 x 107 ) / 107

GCD(1, 107) = 107 / 107

GCD(1, 107) = 1

GCD of 402, 721, 81, 107 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 410, 786, 91, 860
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• GCD of 226, 298, 30, 766
• GCD of 555, 909, 81, 423
• GCD of 459, 594, 16, 228

1. What is the GCD of 402, 721, 81, 107?

GCD of 402, 721, 81, 107 is 1

2. Where do I get the detailed procedure to find GCD of 402, 721, 81, 107?

You can find a detailed procedure to find GCD of 402, 721, 81, 107 on our page.

3. How to find GCD of 402, 721, 81, 107 on a calculator?

You can find the GCD of 402, 721, 81, 107 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.