GCD of 13, 390, 265, 770 Calculator

Given Input numbers are 13, 390, 265, 770

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

Divisors of 13

List of positive integer divisors of 13 that divides 13 without a remainder.

1, 13

Divisors of 390

List of positive integer divisors of 390 that divides 390 without a remainder.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 265

List of positive integer divisors of 265 that divides 265 without a remainder.

1, 5, 53, 265

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 13, 390, 265, 770 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 13, 390, 265, 770 is 1.

Therefore, GCD of numbers 13, 390, 265, 770 is 1

Given Input Data is 13, 390, 265, 770

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

Prime Factorization of 13 is 13

Prime Factorization of 390 is 2 x 3 x 5 x 13

Prime Factorization of 265 is 5 x 53

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(13, 390) = 390

GCD(13, 390) = ( 13 x 390 ) / 390

GCD(13, 390) = 5070 / 390

GCD(13, 390) = 13

Step2:

Here we consider the GCD from the above i.e. 13 as first number and the next as 265

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

LCM(13, 265) = 3445

GCD(13, 265) = ( 13 x 265 ) / 3445

GCD(13, 265) = 3445 / 3445

GCD(13, 265) = 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 13, 390, 265, 770 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 10, 648, 279, 739
• GCD of 34, 314, 343, 487
• GCD of 30, 443, 932, 740
• GCD of 52, 842, 639, 270
• GCD of 40, 422, 504, 267

1. What is the GCD of 13, 390, 265, 770?

GCD of 13, 390, 265, 770 is 1

2. Where do I get the detailed procedure to find GCD of 13, 390, 265, 770?

You can find a detailed procedure to find GCD of 13, 390, 265, 770 on our page.

3. How to find GCD of 13, 390, 265, 770 on a calculator?

You can find the GCD of 13, 390, 265, 770 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.