GCD of 155, 273, 207, 687 Calculator

Given Input numbers are 155, 273, 207, 687

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

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Divisors of 273

List of positive integer divisors of 273 that divides 273 without a remainder.

1, 3, 7, 13, 21, 39, 91, 273

Divisors of 207

List of positive integer divisors of 207 that divides 207 without a remainder.

1, 3, 9, 23, 69, 207

Divisors of 687

List of positive integer divisors of 687 that divides 687 without a remainder.

1, 3, 229, 687

Greatest Common Divisior

We found the divisors of 155, 273, 207, 687 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 155, 273, 207, 687 is 1.

Therefore, GCD of numbers 155, 273, 207, 687 is 1

Given Input Data is 155, 273, 207, 687

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

Prime Factorization of 155 is 5 x 31

Prime Factorization of 273 is 3 x 7 x 13

Prime Factorization of 207 is 3 x 3 x 23

Prime Factorization of 687 is 3 x 229

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(155, 273) = 42315

GCD(155, 273) = ( 155 x 273 ) / 42315

GCD(155, 273) = 42315 / 42315

GCD(155, 273) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 207

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

LCM(1, 207) = 207

GCD(1, 207) = ( 1 x 207 ) / 207

GCD(1, 207) = 207 / 207

GCD(1, 207) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 687

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

LCM(1, 687) = 687

GCD(1, 687) = ( 1 x 687 ) / 687

GCD(1, 687) = 687 / 687

GCD(1, 687) = 1

GCD of 155, 273, 207, 687 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 643, 897, 244, 666
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• GCD of 887, 693, 962, 944
• GCD of 339, 294, 122, 402

1. What is the GCD of 155, 273, 207, 687?

GCD of 155, 273, 207, 687 is 1

2. Where do I get the detailed procedure to find GCD of 155, 273, 207, 687?

You can find a detailed procedure to find GCD of 155, 273, 207, 687 on our page.

3. How to find GCD of 155, 273, 207, 687 on a calculator?

You can find the GCD of 155, 273, 207, 687 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.