GCD of 421, 771, 330, 785 Calculator

Given Input numbers are 421, 771, 330, 785

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

Divisors of 421

List of positive integer divisors of 421 that divides 421 without a remainder.

1, 421

Divisors of 771

List of positive integer divisors of 771 that divides 771 without a remainder.

1, 3, 257, 771

Divisors of 330

List of positive integer divisors of 330 that divides 330 without a remainder.

1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330

Divisors of 785

List of positive integer divisors of 785 that divides 785 without a remainder.

1, 5, 157, 785

Greatest Common Divisior

We found the divisors of 421, 771, 330, 785 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 421, 771, 330, 785 is 1.

Therefore, GCD of numbers 421, 771, 330, 785 is 1

Given Input Data is 421, 771, 330, 785

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

Prime Factorization of 421 is 421

Prime Factorization of 771 is 3 x 257

Prime Factorization of 330 is 2 x 3 x 5 x 11

Prime Factorization of 785 is 5 x 157

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(421, 771) = 324591

GCD(421, 771) = ( 421 x 771 ) / 324591

GCD(421, 771) = 324591 / 324591

GCD(421, 771) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 330

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

LCM(1, 330) = 330

GCD(1, 330) = ( 1 x 330 ) / 330

GCD(1, 330) = 330 / 330

GCD(1, 330) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 785

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

LCM(1, 785) = 785

GCD(1, 785) = ( 1 x 785 ) / 785

GCD(1, 785) = 785 / 785

GCD(1, 785) = 1

GCD of 421, 771, 330, 785 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 397, 565, 751, 670
• GCD of 632, 197, 120, 499
• GCD of 189, 104, 626, 286
• GCD of 830, 417, 713, 773
• GCD of 639, 421, 350, 300

1. What is the GCD of 421, 771, 330, 785?

GCD of 421, 771, 330, 785 is 1

2. Where do I get the detailed procedure to find GCD of 421, 771, 330, 785?

You can find a detailed procedure to find GCD of 421, 771, 330, 785 on our page.

3. How to find GCD of 421, 771, 330, 785 on a calculator?

You can find the GCD of 421, 771, 330, 785 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.