GCD of 436, 138, 840, 547 Calculator

Given Input numbers are 436, 138, 840, 547

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

Divisors of 436

List of positive integer divisors of 436 that divides 436 without a remainder.

1, 2, 4, 109, 218, 436

Divisors of 138

List of positive integer divisors of 138 that divides 138 without a remainder.

1, 2, 3, 6, 23, 46, 69, 138

Divisors of 840

List of positive integer divisors of 840 that divides 840 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 547

List of positive integer divisors of 547 that divides 547 without a remainder.

1, 547

Greatest Common Divisior

We found the divisors of 436, 138, 840, 547 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 436, 138, 840, 547 is 1.

Therefore, GCD of numbers 436, 138, 840, 547 is 1

Given Input Data is 436, 138, 840, 547

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

Prime Factorization of 436 is 2 x 2 x 109

Prime Factorization of 138 is 2 x 3 x 23

Prime Factorization of 840 is 2 x 2 x 2 x 3 x 5 x 7

Prime Factorization of 547 is 547

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(436, 138) = 30084

GCD(436, 138) = ( 436 x 138 ) / 30084

GCD(436, 138) = 60168 / 30084

GCD(436, 138) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 840

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

LCM(2, 840) = 840

GCD(2, 840) = ( 2 x 840 ) / 840

GCD(2, 840) = 1680 / 840

GCD(2, 840) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 547

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

LCM(2, 547) = 1094

GCD(2, 547) = ( 2 x 547 ) / 1094

GCD(2, 547) = 1094 / 1094

GCD(2, 547) = 1

GCD of 436, 138, 840, 547 is 1

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1. What is the GCD of 436, 138, 840, 547?

GCD of 436, 138, 840, 547 is 1

2. Where do I get the detailed procedure to find GCD of 436, 138, 840, 547?

You can find a detailed procedure to find GCD of 436, 138, 840, 547 on our page.

3. How to find GCD of 436, 138, 840, 547 on a calculator?

You can find the GCD of 436, 138, 840, 547 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.