GCD of 690, 247, 623 Calculator

Given Input numbers are 690, 247, 623

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

Divisors of 690

List of positive integer divisors of 690 that divides 690 without a remainder.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

Divisors of 623

List of positive integer divisors of 623 that divides 623 without a remainder.

1, 7, 89, 623

Greatest Common Divisior

We found the divisors of 690, 247, 623 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 690, 247, 623 is 1.

Therefore, GCD of numbers 690, 247, 623 is 1

Given Input Data is 690, 247, 623

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

Prime Factorization of 690 is 2 x 3 x 5 x 23

Prime Factorization of 247 is 13 x 19

Prime Factorization of 623 is 7 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(690, 247) = 170430

GCD(690, 247) = ( 690 x 247 ) / 170430

GCD(690, 247) = 170430 / 170430

GCD(690, 247) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 623

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

LCM(1, 623) = 623

GCD(1, 623) = ( 1 x 623 ) / 623

GCD(1, 623) = 623 / 623

GCD(1, 623) = 1

GCD of 690, 247, 623 is 1

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1. What is the GCD of 690, 247, 623?

GCD of 690, 247, 623 is 1

2. Where do I get the detailed procedure to find GCD of 690, 247, 623?

You can find a detailed procedure to find GCD of 690, 247, 623 on our page.

3. How to find GCD of 690, 247, 623 on a calculator?

You can find the GCD of 690, 247, 623 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.