GCD of 644, 446, 69, 770 Calculator

Given Input numbers are 644, 446, 69, 770

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

Divisors of 644

List of positive integer divisors of 644 that divides 644 without a remainder.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 446

List of positive integer divisors of 446 that divides 446 without a remainder.

1, 2, 223, 446

Divisors of 69

List of positive integer divisors of 69 that divides 69 without a remainder.

1, 3, 23, 69

Divisors of 770

List of positive integer divisors of 770 that divides 770 without a remainder.

1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770

Greatest Common Divisior

We found the divisors of 644, 446, 69, 770 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 644, 446, 69, 770 is 1.

Therefore, GCD of numbers 644, 446, 69, 770 is 1

Given Input Data is 644, 446, 69, 770

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

Prime Factorization of 644 is 2 x 2 x 7 x 23

Prime Factorization of 446 is 2 x 223

Prime Factorization of 69 is 3 x 23

Prime Factorization of 770 is 2 x 5 x 7 x 11

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(644, 446) = 143612

GCD(644, 446) = ( 644 x 446 ) / 143612

GCD(644, 446) = 287224 / 143612

GCD(644, 446) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 69

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

LCM(2, 69) = 138

GCD(2, 69) = ( 2 x 69 ) / 138

GCD(2, 69) = 138 / 138

GCD(2, 69) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 770

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

LCM(1, 770) = 770

GCD(1, 770) = ( 1 x 770 ) / 770

GCD(1, 770) = 770 / 770

GCD(1, 770) = 1

GCD of 644, 446, 69, 770 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 515, 956, 14, 289
• GCD of 641, 494, 13, 573
• GCD of 943, 824, 40, 910
• GCD of 184, 244, 89, 860
• GCD of 921, 499, 97, 271

1. What is the GCD of 644, 446, 69, 770?

GCD of 644, 446, 69, 770 is 1

2. Where do I get the detailed procedure to find GCD of 644, 446, 69, 770?

You can find a detailed procedure to find GCD of 644, 446, 69, 770 on our page.

3. How to find GCD of 644, 446, 69, 770 on a calculator?

You can find the GCD of 644, 446, 69, 770 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.