GCD of 654, 393, 25, 851 Calculator

Given Input numbers are 654, 393, 25, 851

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

Divisors of 654

List of positive integer divisors of 654 that divides 654 without a remainder.

1, 2, 3, 6, 109, 218, 327, 654

Divisors of 393

List of positive integer divisors of 393 that divides 393 without a remainder.

1, 3, 131, 393

Divisors of 25

List of positive integer divisors of 25 that divides 25 without a remainder.

1, 5, 25

Divisors of 851

List of positive integer divisors of 851 that divides 851 without a remainder.

1, 23, 37, 851

Greatest Common Divisior

We found the divisors of 654, 393, 25, 851 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 654, 393, 25, 851 is 1.

Therefore, GCD of numbers 654, 393, 25, 851 is 1

Given Input Data is 654, 393, 25, 851

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

Prime Factorization of 654 is 2 x 3 x 109

Prime Factorization of 393 is 3 x 131

Prime Factorization of 25 is 5 x 5

Prime Factorization of 851 is 23 x 37

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(654, 393) = 85674

GCD(654, 393) = ( 654 x 393 ) / 85674

GCD(654, 393) = 257022 / 85674

GCD(654, 393) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 25

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

LCM(3, 25) = 75

GCD(3, 25) = ( 3 x 25 ) / 75

GCD(3, 25) = 75 / 75

GCD(3, 25) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 851

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

LCM(1, 851) = 851

GCD(1, 851) = ( 1 x 851 ) / 851

GCD(1, 851) = 851 / 851

GCD(1, 851) = 1

GCD of 654, 393, 25, 851 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 321, 841, 98, 136
• GCD of 656, 301, 29, 199
• GCD of 158, 373, 36, 755
• GCD of 584, 926, 28, 781
• GCD of 395, 291, 48, 925

1. What is the GCD of 654, 393, 25, 851?

GCD of 654, 393, 25, 851 is 1

2. Where do I get the detailed procedure to find GCD of 654, 393, 25, 851?

You can find a detailed procedure to find GCD of 654, 393, 25, 851 on our page.

3. How to find GCD of 654, 393, 25, 851 on a calculator?

You can find the GCD of 654, 393, 25, 851 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.