GCD of 685, 387, 786, 278 Calculator

Given Input numbers are 685, 387, 786, 278

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

Divisors of 685

List of positive integer divisors of 685 that divides 685 without a remainder.

1, 5, 137, 685

Divisors of 387

List of positive integer divisors of 387 that divides 387 without a remainder.

1, 3, 9, 43, 129, 387

Divisors of 786

List of positive integer divisors of 786 that divides 786 without a remainder.

1, 2, 3, 6, 131, 262, 393, 786

Divisors of 278

List of positive integer divisors of 278 that divides 278 without a remainder.

1, 2, 139, 278

Greatest Common Divisior

We found the divisors of 685, 387, 786, 278 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 685, 387, 786, 278 is 1.

Therefore, GCD of numbers 685, 387, 786, 278 is 1

Given Input Data is 685, 387, 786, 278

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

Prime Factorization of 685 is 5 x 137

Prime Factorization of 387 is 3 x 3 x 43

Prime Factorization of 786 is 2 x 3 x 131

Prime Factorization of 278 is 2 x 139

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(685, 387) = 265095

GCD(685, 387) = ( 685 x 387 ) / 265095

GCD(685, 387) = 265095 / 265095

GCD(685, 387) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 786

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

LCM(1, 786) = 786

GCD(1, 786) = ( 1 x 786 ) / 786

GCD(1, 786) = 786 / 786

GCD(1, 786) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 278

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

LCM(1, 278) = 278

GCD(1, 278) = ( 1 x 278 ) / 278

GCD(1, 278) = 278 / 278

GCD(1, 278) = 1

GCD of 685, 387, 786, 278 is 1

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1. What is the GCD of 685, 387, 786, 278?

GCD of 685, 387, 786, 278 is 1

2. Where do I get the detailed procedure to find GCD of 685, 387, 786, 278?

You can find a detailed procedure to find GCD of 685, 387, 786, 278 on our page.

3. How to find GCD of 685, 387, 786, 278 on a calculator?

You can find the GCD of 685, 387, 786, 278 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.