GCD of 780, 235, 247, 168 Calculator

Given Input numbers are 780, 235, 247, 168

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

Divisors of 780

List of positive integer divisors of 780 that divides 780 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 235

List of positive integer divisors of 235 that divides 235 without a remainder.

1, 5, 47, 235

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

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

Greatest Common Divisior

We found the divisors of 780, 235, 247, 168 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 780, 235, 247, 168 is 1.

Therefore, GCD of numbers 780, 235, 247, 168 is 1

Given Input Data is 780, 235, 247, 168

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

Prime Factorization of 780 is 2 x 2 x 3 x 5 x 13

Prime Factorization of 235 is 5 x 47

Prime Factorization of 247 is 13 x 19

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

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(780, 235) = 36660

GCD(780, 235) = ( 780 x 235 ) / 36660

GCD(780, 235) = 183300 / 36660

GCD(780, 235) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 247

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

LCM(5, 247) = 1235

GCD(5, 247) = ( 5 x 247 ) / 1235

GCD(5, 247) = 1235 / 1235

GCD(5, 247) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 168

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

LCM(1, 168) = 168

GCD(1, 168) = ( 1 x 168 ) / 168

GCD(1, 168) = 168 / 168

GCD(1, 168) = 1

GCD of 780, 235, 247, 168 is 1

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1. What is the GCD of 780, 235, 247, 168?

GCD of 780, 235, 247, 168 is 1

2. Where do I get the detailed procedure to find GCD of 780, 235, 247, 168?

You can find a detailed procedure to find GCD of 780, 235, 247, 168 on our page.

3. How to find GCD of 780, 235, 247, 168 on a calculator?

You can find the GCD of 780, 235, 247, 168 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.