GCD of 15, 716, 815, 770 Calculator

Given Input numbers are 15, 716, 815, 770

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

Divisors of 15

List of positive integer divisors of 15 that divides 15 without a remainder.

1, 3, 5, 15

Divisors of 716

List of positive integer divisors of 716 that divides 716 without a remainder.

1, 2, 4, 179, 358, 716

Divisors of 815

List of positive integer divisors of 815 that divides 815 without a remainder.

1, 5, 163, 815

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 15, 716, 815, 770 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 15, 716, 815, 770 is 1.

Therefore, GCD of numbers 15, 716, 815, 770 is 1

Given Input Data is 15, 716, 815, 770

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

Prime Factorization of 15 is 3 x 5

Prime Factorization of 716 is 2 x 2 x 179

Prime Factorization of 815 is 5 x 163

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(15, 716) = 10740

GCD(15, 716) = ( 15 x 716 ) / 10740

GCD(15, 716) = 10740 / 10740

GCD(15, 716) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 815

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

LCM(1, 815) = 815

GCD(1, 815) = ( 1 x 815 ) / 815

GCD(1, 815) = 815 / 815

GCD(1, 815) = 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 15, 716, 815, 770 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 12, 384, 179, 390
• GCD of 78, 278, 110, 885
• GCD of 59, 318, 477, 509
• GCD of 32, 244, 337, 310
• GCD of 91, 801, 643, 752

1. What is the GCD of 15, 716, 815, 770?

GCD of 15, 716, 815, 770 is 1

2. Where do I get the detailed procedure to find GCD of 15, 716, 815, 770?

You can find a detailed procedure to find GCD of 15, 716, 815, 770 on our page.

3. How to find GCD of 15, 716, 815, 770 on a calculator?

You can find the GCD of 15, 716, 815, 770 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.