GCD of 685, 717, 745, 549 Calculator

Given Input numbers are 685, 717, 745, 549

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 717

List of positive integer divisors of 717 that divides 717 without a remainder.

1, 3, 239, 717

Divisors of 745

List of positive integer divisors of 745 that divides 745 without a remainder.

1, 5, 149, 745

Divisors of 549

List of positive integer divisors of 549 that divides 549 without a remainder.

1, 3, 9, 61, 183, 549

Greatest Common Divisior

We found the divisors of 685, 717, 745, 549 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 685, 717, 745, 549 is 1.

Therefore, GCD of numbers 685, 717, 745, 549 is 1

Given Input Data is 685, 717, 745, 549

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

Prime Factorization of 685 is 5 x 137

Prime Factorization of 717 is 3 x 239

Prime Factorization of 745 is 5 x 149

Prime Factorization of 549 is 3 x 3 x 61

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, 717) = 491145

GCD(685, 717) = ( 685 x 717 ) / 491145

GCD(685, 717) = 491145 / 491145

GCD(685, 717) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 745

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

LCM(1, 745) = 745

GCD(1, 745) = ( 1 x 745 ) / 745

GCD(1, 745) = 745 / 745

GCD(1, 745) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 549

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

LCM(1, 549) = 549

GCD(1, 549) = ( 1 x 549 ) / 549

GCD(1, 549) = 549 / 549

GCD(1, 549) = 1

GCD of 685, 717, 745, 549 is 1

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• GCD of 447, 888, 289, 222
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• GCD of 321, 142, 554, 790

1. What is the GCD of 685, 717, 745, 549?

GCD of 685, 717, 745, 549 is 1

2. Where do I get the detailed procedure to find GCD of 685, 717, 745, 549?

You can find a detailed procedure to find GCD of 685, 717, 745, 549 on our page.

3. How to find GCD of 685, 717, 745, 549 on a calculator?

You can find the GCD of 685, 717, 745, 549 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.