GCD of 321, 448, 771, 620 Calculator

Given Input numbers are 321, 448, 771, 620

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

Divisors of 321

List of positive integer divisors of 321 that divides 321 without a remainder.

1, 3, 107, 321

Divisors of 448

List of positive integer divisors of 448 that divides 448 without a remainder.

1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448

Divisors of 771

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

1, 3, 257, 771

Divisors of 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Greatest Common Divisior

We found the divisors of 321, 448, 771, 620 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 321, 448, 771, 620 is 1.

Therefore, GCD of numbers 321, 448, 771, 620 is 1

Given Input Data is 321, 448, 771, 620

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

Prime Factorization of 321 is 3 x 107

Prime Factorization of 448 is 2 x 2 x 2 x 2 x 2 x 2 x 7

Prime Factorization of 771 is 3 x 257

Prime Factorization of 620 is 2 x 2 x 5 x 31

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(321, 448) = 143808

GCD(321, 448) = ( 321 x 448 ) / 143808

GCD(321, 448) = 143808 / 143808

GCD(321, 448) = 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 620

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

LCM(1, 620) = 620

GCD(1, 620) = ( 1 x 620 ) / 620

GCD(1, 620) = 620 / 620

GCD(1, 620) = 1

GCD of 321, 448, 771, 620 is 1

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1. What is the GCD of 321, 448, 771, 620?

GCD of 321, 448, 771, 620 is 1

2. Where do I get the detailed procedure to find GCD of 321, 448, 771, 620?

You can find a detailed procedure to find GCD of 321, 448, 771, 620 on our page.

3. How to find GCD of 321, 448, 771, 620 on a calculator?

You can find the GCD of 321, 448, 771, 620 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.