GCD of 690, 499, 42, 865 Calculator

Given Input numbers are 690, 499, 42, 865

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 499

List of positive integer divisors of 499 that divides 499 without a remainder.

1, 499

Divisors of 42

List of positive integer divisors of 42 that divides 42 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42

Divisors of 865

List of positive integer divisors of 865 that divides 865 without a remainder.

1, 5, 173, 865

Greatest Common Divisior

We found the divisors of 690, 499, 42, 865 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 690, 499, 42, 865 is 1.

Therefore, GCD of numbers 690, 499, 42, 865 is 1

Given Input Data is 690, 499, 42, 865

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 499 is 499

Prime Factorization of 42 is 2 x 3 x 7

Prime Factorization of 865 is 5 x 173

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, 499) = 344310

GCD(690, 499) = ( 690 x 499 ) / 344310

GCD(690, 499) = 344310 / 344310

GCD(690, 499) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 42

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

LCM(1, 42) = 42

GCD(1, 42) = ( 1 x 42 ) / 42

GCD(1, 42) = 42 / 42

GCD(1, 42) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 865

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

LCM(1, 865) = 865

GCD(1, 865) = ( 1 x 865 ) / 865

GCD(1, 865) = 865 / 865

GCD(1, 865) = 1

GCD of 690, 499, 42, 865 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 266, 696, 92, 315
• GCD of 279, 131, 97, 678
• GCD of 415, 406, 31, 948
• GCD of 333, 649, 18, 983
• GCD of 585, 237, 17, 994

1. What is the GCD of 690, 499, 42, 865?

GCD of 690, 499, 42, 865 is 1

2. Where do I get the detailed procedure to find GCD of 690, 499, 42, 865?

You can find a detailed procedure to find GCD of 690, 499, 42, 865 on our page.

3. How to find GCD of 690, 499, 42, 865 on a calculator?

You can find the GCD of 690, 499, 42, 865 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.