GCD of 168, 151, 645, 542 Calculator

Given Input numbers are 168, 151, 645, 542

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

Divisors of 168

List of positive integer divisors of 168 that divides 168 without a remainder.

1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

Divisors of 151

List of positive integer divisors of 151 that divides 151 without a remainder.

1, 151

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 542

List of positive integer divisors of 542 that divides 542 without a remainder.

1, 2, 271, 542

Greatest Common Divisior

We found the divisors of 168, 151, 645, 542 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 168, 151, 645, 542 is 1.

Therefore, GCD of numbers 168, 151, 645, 542 is 1

Given Input Data is 168, 151, 645, 542

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

Prime Factorization of 168 is 2 x 2 x 2 x 3 x 7

Prime Factorization of 151 is 151

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 542 is 2 x 271

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(168, 151) = 25368

GCD(168, 151) = ( 168 x 151 ) / 25368

GCD(168, 151) = 25368 / 25368

GCD(168, 151) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 645

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

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

GCD(1, 645) = 645 / 645

GCD(1, 645) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 542

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

LCM(1, 542) = 542

GCD(1, 542) = ( 1 x 542 ) / 542

GCD(1, 542) = 542 / 542

GCD(1, 542) = 1

GCD of 168, 151, 645, 542 is 1

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1. What is the GCD of 168, 151, 645, 542?

GCD of 168, 151, 645, 542 is 1

2. Where do I get the detailed procedure to find GCD of 168, 151, 645, 542?

You can find a detailed procedure to find GCD of 168, 151, 645, 542 on our page.

3. How to find GCD of 168, 151, 645, 542 on a calculator?

You can find the GCD of 168, 151, 645, 542 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.