GCD of 146, 621, 21, 666 Calculator

Given Input numbers are 146, 621, 21, 666

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

Divisors of 146

List of positive integer divisors of 146 that divides 146 without a remainder.

1, 2, 73, 146

Divisors of 621

List of positive integer divisors of 621 that divides 621 without a remainder.

1, 3, 9, 23, 27, 69, 207, 621

Divisors of 21

List of positive integer divisors of 21 that divides 21 without a remainder.

1, 3, 7, 21

Divisors of 666

List of positive integer divisors of 666 that divides 666 without a remainder.

1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666

Greatest Common Divisior

We found the divisors of 146, 621, 21, 666 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 146, 621, 21, 666 is 1.

Therefore, GCD of numbers 146, 621, 21, 666 is 1

Given Input Data is 146, 621, 21, 666

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

Prime Factorization of 146 is 2 x 73

Prime Factorization of 621 is 3 x 3 x 3 x 23

Prime Factorization of 21 is 3 x 7

Prime Factorization of 666 is 2 x 3 x 3 x 37

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(146, 621) = 90666

GCD(146, 621) = ( 146 x 621 ) / 90666

GCD(146, 621) = 90666 / 90666

GCD(146, 621) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 21

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

LCM(1, 21) = 21

GCD(1, 21) = ( 1 x 21 ) / 21

GCD(1, 21) = 21 / 21

GCD(1, 21) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 666

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

LCM(1, 666) = 666

GCD(1, 666) = ( 1 x 666 ) / 666

GCD(1, 666) = 666 / 666

GCD(1, 666) = 1

GCD of 146, 621, 21, 666 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 928, 946, 22, 349
• GCD of 370, 261, 58, 895
• GCD of 925, 798, 46, 770
• GCD of 263, 519, 44, 376
• GCD of 414, 465, 43, 527

1. What is the GCD of 146, 621, 21, 666?

GCD of 146, 621, 21, 666 is 1

2. Where do I get the detailed procedure to find GCD of 146, 621, 21, 666?

You can find a detailed procedure to find GCD of 146, 621, 21, 666 on our page.

3. How to find GCD of 146, 621, 21, 666 on a calculator?

You can find the GCD of 146, 621, 21, 666 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.