GCD of 991, 921, 768, 879 Calculator

Given Input numbers are 991, 921, 768, 879

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

Divisors of 991

List of positive integer divisors of 991 that divides 991 without a remainder.

1, 991

Divisors of 921

List of positive integer divisors of 921 that divides 921 without a remainder.

1, 3, 307, 921

Divisors of 768

List of positive integer divisors of 768 that divides 768 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768

Divisors of 879

List of positive integer divisors of 879 that divides 879 without a remainder.

1, 3, 293, 879

Greatest Common Divisior

We found the divisors of 991, 921, 768, 879 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 991, 921, 768, 879 is 1.

Therefore, GCD of numbers 991, 921, 768, 879 is 1

Given Input Data is 991, 921, 768, 879

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

Prime Factorization of 991 is 991

Prime Factorization of 921 is 3 x 307

Prime Factorization of 768 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3

Prime Factorization of 879 is 3 x 293

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(991, 921) = 912711

GCD(991, 921) = ( 991 x 921 ) / 912711

GCD(991, 921) = 912711 / 912711

GCD(991, 921) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 768

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

LCM(1, 768) = 768

GCD(1, 768) = ( 1 x 768 ) / 768

GCD(1, 768) = 768 / 768

GCD(1, 768) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 879

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

LCM(1, 879) = 879

GCD(1, 879) = ( 1 x 879 ) / 879

GCD(1, 879) = 879 / 879

GCD(1, 879) = 1

GCD of 991, 921, 768, 879 is 1

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1. What is the GCD of 991, 921, 768, 879?

GCD of 991, 921, 768, 879 is 1

2. Where do I get the detailed procedure to find GCD of 991, 921, 768, 879?

You can find a detailed procedure to find GCD of 991, 921, 768, 879 on our page.

3. How to find GCD of 991, 921, 768, 879 on a calculator?

You can find the GCD of 991, 921, 768, 879 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.