GCD of 771, 779, 43, 138 Calculator

Given Input numbers are 771, 779, 43, 138

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

Divisors of 771

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

1, 3, 257, 771

Divisors of 779

List of positive integer divisors of 779 that divides 779 without a remainder.

1, 19, 41, 779

Divisors of 43

List of positive integer divisors of 43 that divides 43 without a remainder.

1, 43

Divisors of 138

List of positive integer divisors of 138 that divides 138 without a remainder.

1, 2, 3, 6, 23, 46, 69, 138

Greatest Common Divisior

We found the divisors of 771, 779, 43, 138 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 771, 779, 43, 138 is 1.

Therefore, GCD of numbers 771, 779, 43, 138 is 1

Given Input Data is 771, 779, 43, 138

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

Prime Factorization of 771 is 3 x 257

Prime Factorization of 779 is 19 x 41

Prime Factorization of 43 is 43

Prime Factorization of 138 is 2 x 3 x 23

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(771, 779) = 600609

GCD(771, 779) = ( 771 x 779 ) / 600609

GCD(771, 779) = 600609 / 600609

GCD(771, 779) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 43

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

LCM(1, 43) = 43

GCD(1, 43) = ( 1 x 43 ) / 43

GCD(1, 43) = 43 / 43

GCD(1, 43) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 138

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

LCM(1, 138) = 138

GCD(1, 138) = ( 1 x 138 ) / 138

GCD(1, 138) = 138 / 138

GCD(1, 138) = 1

GCD of 771, 779, 43, 138 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 414, 467, 58, 166
• GCD of 293, 426, 78, 408
• GCD of 847, 845, 81, 868
• GCD of 737, 940, 28, 850
• GCD of 640, 345, 69, 807

1. What is the GCD of 771, 779, 43, 138?

GCD of 771, 779, 43, 138 is 1

2. Where do I get the detailed procedure to find GCD of 771, 779, 43, 138?

You can find a detailed procedure to find GCD of 771, 779, 43, 138 on our page.

3. How to find GCD of 771, 779, 43, 138 on a calculator?

You can find the GCD of 771, 779, 43, 138 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.