GCD of 221, 751, 821, 764 Calculator

Given Input numbers are 221, 751, 821, 764

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

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Divisors of 751

List of positive integer divisors of 751 that divides 751 without a remainder.

1, 751

Divisors of 821

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

1, 821

Divisors of 764

List of positive integer divisors of 764 that divides 764 without a remainder.

1, 2, 4, 191, 382, 764

Greatest Common Divisior

We found the divisors of 221, 751, 821, 764 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 221, 751, 821, 764 is 1.

Therefore, GCD of numbers 221, 751, 821, 764 is 1

Given Input Data is 221, 751, 821, 764

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

Prime Factorization of 221 is 13 x 17

Prime Factorization of 751 is 751

Prime Factorization of 821 is 821

Prime Factorization of 764 is 2 x 2 x 191

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(221, 751) = 165971

GCD(221, 751) = ( 221 x 751 ) / 165971

GCD(221, 751) = 165971 / 165971

GCD(221, 751) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 821

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

LCM(1, 821) = 821

GCD(1, 821) = ( 1 x 821 ) / 821

GCD(1, 821) = 821 / 821

GCD(1, 821) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 764

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

LCM(1, 764) = 764

GCD(1, 764) = ( 1 x 764 ) / 764

GCD(1, 764) = 764 / 764

GCD(1, 764) = 1

GCD of 221, 751, 821, 764 is 1

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1. What is the GCD of 221, 751, 821, 764?

GCD of 221, 751, 821, 764 is 1

2. Where do I get the detailed procedure to find GCD of 221, 751, 821, 764?

You can find a detailed procedure to find GCD of 221, 751, 821, 764 on our page.

3. How to find GCD of 221, 751, 821, 764 on a calculator?

You can find the GCD of 221, 751, 821, 764 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.