GCD of 821, 489, 771, 262 Calculator

Given Input numbers are 821, 489, 771, 262

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

Divisors of 821

List of positive integer divisors of 821 that divides 821 without a remainder.

1, 821

Divisors of 489

List of positive integer divisors of 489 that divides 489 without a remainder.

1, 3, 163, 489

Divisors of 771

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

1, 3, 257, 771

Divisors of 262

List of positive integer divisors of 262 that divides 262 without a remainder.

1, 2, 131, 262

Greatest Common Divisior

We found the divisors of 821, 489, 771, 262 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 821, 489, 771, 262 is 1.

Therefore, GCD of numbers 821, 489, 771, 262 is 1

Given Input Data is 821, 489, 771, 262

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

Prime Factorization of 821 is 821

Prime Factorization of 489 is 3 x 163

Prime Factorization of 771 is 3 x 257

Prime Factorization of 262 is 2 x 131

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(821, 489) = 401469

GCD(821, 489) = ( 821 x 489 ) / 401469

GCD(821, 489) = 401469 / 401469

GCD(821, 489) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 771

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

LCM(1, 771) = 771

GCD(1, 771) = ( 1 x 771 ) / 771

GCD(1, 771) = 771 / 771

GCD(1, 771) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 262

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

LCM(1, 262) = 262

GCD(1, 262) = ( 1 x 262 ) / 262

GCD(1, 262) = 262 / 262

GCD(1, 262) = 1

GCD of 821, 489, 771, 262 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 334, 556, 761, 422
• GCD of 768, 169, 325, 836
• GCD of 819, 622, 147, 933
• GCD of 995, 872, 239, 163
• GCD of 489, 970, 216, 513

1. What is the GCD of 821, 489, 771, 262?

GCD of 821, 489, 771, 262 is 1

2. Where do I get the detailed procedure to find GCD of 821, 489, 771, 262?

You can find a detailed procedure to find GCD of 821, 489, 771, 262 on our page.

3. How to find GCD of 821, 489, 771, 262 on a calculator?

You can find the GCD of 821, 489, 771, 262 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.