GCD of 133, 131, 420, 388 Calculator

Given Input numbers are 133, 131, 420, 388

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

Divisors of 133

List of positive integer divisors of 133 that divides 133 without a remainder.

1, 7, 19, 133

Divisors of 131

List of positive integer divisors of 131 that divides 131 without a remainder.

1, 131

Divisors of 420

List of positive integer divisors of 420 that divides 420 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Divisors of 388

List of positive integer divisors of 388 that divides 388 without a remainder.

1, 2, 4, 97, 194, 388

Greatest Common Divisior

We found the divisors of 133, 131, 420, 388 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 133, 131, 420, 388 is 1.

Therefore, GCD of numbers 133, 131, 420, 388 is 1

Given Input Data is 133, 131, 420, 388

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

Prime Factorization of 133 is 7 x 19

Prime Factorization of 131 is 131

Prime Factorization of 420 is 2 x 2 x 3 x 5 x 7

Prime Factorization of 388 is 2 x 2 x 97

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(133, 131) = 17423

GCD(133, 131) = ( 133 x 131 ) / 17423

GCD(133, 131) = 17423 / 17423

GCD(133, 131) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 420

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

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

GCD(1, 420) = 420 / 420

GCD(1, 420) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 388

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

LCM(1, 388) = 388

GCD(1, 388) = ( 1 x 388 ) / 388

GCD(1, 388) = 388 / 388

GCD(1, 388) = 1

GCD of 133, 131, 420, 388 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 384, 874, 705, 725
• GCD of 516, 533, 305, 951
• GCD of 478, 206, 569, 220
• GCD of 921, 916, 935, 645
• GCD of 729, 503, 358, 223

1. What is the GCD of 133, 131, 420, 388?

GCD of 133, 131, 420, 388 is 1

2. Where do I get the detailed procedure to find GCD of 133, 131, 420, 388?

You can find a detailed procedure to find GCD of 133, 131, 420, 388 on our page.

3. How to find GCD of 133, 131, 420, 388 on a calculator?

You can find the GCD of 133, 131, 420, 388 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.