GCD of 685, 870, 860, 613 Calculator

Given Input numbers are 685, 870, 860, 613

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

Divisors of 685

List of positive integer divisors of 685 that divides 685 without a remainder.

1, 5, 137, 685

Divisors of 870

List of positive integer divisors of 870 that divides 870 without a remainder.

1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870

Divisors of 860

List of positive integer divisors of 860 that divides 860 without a remainder.

1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

Divisors of 613

List of positive integer divisors of 613 that divides 613 without a remainder.

1, 613

Greatest Common Divisior

We found the divisors of 685, 870, 860, 613 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 685, 870, 860, 613 is 1.

Therefore, GCD of numbers 685, 870, 860, 613 is 1

Given Input Data is 685, 870, 860, 613

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

Prime Factorization of 685 is 5 x 137

Prime Factorization of 870 is 2 x 3 x 5 x 29

Prime Factorization of 860 is 2 x 2 x 5 x 43

Prime Factorization of 613 is 613

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(685, 870) = 119190

GCD(685, 870) = ( 685 x 870 ) / 119190

GCD(685, 870) = 595950 / 119190

GCD(685, 870) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 860

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

LCM(5, 860) = 860

GCD(5, 860) = ( 5 x 860 ) / 860

GCD(5, 860) = 4300 / 860

GCD(5, 860) = 5

Step3:

Here we consider the GCD from the above i.e. 5 as first number and the next as 613

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

LCM(5, 613) = 3065

GCD(5, 613) = ( 5 x 613 ) / 3065

GCD(5, 613) = 3065 / 3065

GCD(5, 613) = 1

GCD of 685, 870, 860, 613 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 907, 530, 173, 176
• GCD of 543, 192, 219, 269
• GCD of 840, 406, 578, 818
• GCD of 921, 244, 955, 497
• GCD of 943, 221, 444, 624

1. What is the GCD of 685, 870, 860, 613?

GCD of 685, 870, 860, 613 is 1

2. Where do I get the detailed procedure to find GCD of 685, 870, 860, 613?

You can find a detailed procedure to find GCD of 685, 870, 860, 613 on our page.

3. How to find GCD of 685, 870, 860, 613 on a calculator?

You can find the GCD of 685, 870, 860, 613 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.