GCD of 630, 391, 675, 657 Calculator

Given Input numbers are 630, 391, 675, 657

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

Divisors of 630

List of positive integer divisors of 630 that divides 630 without a remainder.

1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630

Divisors of 391

List of positive integer divisors of 391 that divides 391 without a remainder.

1, 17, 23, 391

Divisors of 675

List of positive integer divisors of 675 that divides 675 without a remainder.

1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675

Divisors of 657

List of positive integer divisors of 657 that divides 657 without a remainder.

1, 3, 9, 73, 219, 657

Greatest Common Divisior

We found the divisors of 630, 391, 675, 657 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 630, 391, 675, 657 is 1.

Therefore, GCD of numbers 630, 391, 675, 657 is 1

Given Input Data is 630, 391, 675, 657

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

Prime Factorization of 630 is 2 x 3 x 3 x 5 x 7

Prime Factorization of 391 is 17 x 23

Prime Factorization of 675 is 3 x 3 x 3 x 5 x 5

Prime Factorization of 657 is 3 x 3 x 73

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(630, 391) = 246330

GCD(630, 391) = ( 630 x 391 ) / 246330

GCD(630, 391) = 246330 / 246330

GCD(630, 391) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 675

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

LCM(1, 675) = 675

GCD(1, 675) = ( 1 x 675 ) / 675

GCD(1, 675) = 675 / 675

GCD(1, 675) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 657

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

LCM(1, 657) = 657

GCD(1, 657) = ( 1 x 657 ) / 657

GCD(1, 657) = 657 / 657

GCD(1, 657) = 1

GCD of 630, 391, 675, 657 is 1

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1. What is the GCD of 630, 391, 675, 657?

GCD of 630, 391, 675, 657 is 1

2. Where do I get the detailed procedure to find GCD of 630, 391, 675, 657?

You can find a detailed procedure to find GCD of 630, 391, 675, 657 on our page.

3. How to find GCD of 630, 391, 675, 657 on a calculator?

You can find the GCD of 630, 391, 675, 657 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.