GCD of 686, 665, 68, 712 Calculator

Given Input numbers are 686, 665, 68, 712

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

Divisors of 686

List of positive integer divisors of 686 that divides 686 without a remainder.

1, 2, 7, 14, 49, 98, 343, 686

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Divisors of 68

List of positive integer divisors of 68 that divides 68 without a remainder.

1, 2, 4, 17, 34, 68

Divisors of 712

List of positive integer divisors of 712 that divides 712 without a remainder.

1, 2, 4, 8, 89, 178, 356, 712

Greatest Common Divisior

We found the divisors of 686, 665, 68, 712 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 686, 665, 68, 712 is 1.

Therefore, GCD of numbers 686, 665, 68, 712 is 1

Given Input Data is 686, 665, 68, 712

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

Prime Factorization of 686 is 2 x 7 x 7 x 7

Prime Factorization of 665 is 5 x 7 x 19

Prime Factorization of 68 is 2 x 2 x 17

Prime Factorization of 712 is 2 x 2 x 2 x 89

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(686, 665) = 65170

GCD(686, 665) = ( 686 x 665 ) / 65170

GCD(686, 665) = 456190 / 65170

GCD(686, 665) = 7

Step2:

Here we consider the GCD from the above i.e. 7 as first number and the next as 68

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

LCM(7, 68) = 476

GCD(7, 68) = ( 7 x 68 ) / 476

GCD(7, 68) = 476 / 476

GCD(7, 68) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 712

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

LCM(1, 712) = 712

GCD(1, 712) = ( 1 x 712 ) / 712

GCD(1, 712) = 712 / 712

GCD(1, 712) = 1

GCD of 686, 665, 68, 712 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 875, 623, 35, 551
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• GCD of 321, 650, 45, 355

1. What is the GCD of 686, 665, 68, 712?

GCD of 686, 665, 68, 712 is 1

2. Where do I get the detailed procedure to find GCD of 686, 665, 68, 712?

You can find a detailed procedure to find GCD of 686, 665, 68, 712 on our page.

3. How to find GCD of 686, 665, 68, 712 on a calculator?

You can find the GCD of 686, 665, 68, 712 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.