GCD of 25, 399, 245, 616 Calculator

Given Input numbers are 25, 399, 245, 616

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

Divisors of 25

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

1, 5, 25

Divisors of 399

List of positive integer divisors of 399 that divides 399 without a remainder.

1, 3, 7, 19, 21, 57, 133, 399

Divisors of 245

List of positive integer divisors of 245 that divides 245 without a remainder.

1, 5, 7, 35, 49, 245

Divisors of 616

List of positive integer divisors of 616 that divides 616 without a remainder.

1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616

Greatest Common Divisior

We found the divisors of 25, 399, 245, 616 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 25, 399, 245, 616 is 1.

Therefore, GCD of numbers 25, 399, 245, 616 is 1

Given Input Data is 25, 399, 245, 616

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

Prime Factorization of 25 is 5 x 5

Prime Factorization of 399 is 3 x 7 x 19

Prime Factorization of 245 is 5 x 7 x 7

Prime Factorization of 616 is 2 x 2 x 2 x 7 x 11

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(25, 399) = 9975

GCD(25, 399) = ( 25 x 399 ) / 9975

GCD(25, 399) = 9975 / 9975

GCD(25, 399) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 245

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

LCM(1, 245) = 245

GCD(1, 245) = ( 1 x 245 ) / 245

GCD(1, 245) = 245 / 245

GCD(1, 245) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 616

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

LCM(1, 616) = 616

GCD(1, 616) = ( 1 x 616 ) / 616

GCD(1, 616) = 616 / 616

GCD(1, 616) = 1

GCD of 25, 399, 245, 616 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 66, 186, 312, 571
• GCD of 78, 822, 708, 737
• GCD of 13, 140, 524, 996
• GCD of 99, 164, 356, 207
• GCD of 15, 616, 441, 340

1. What is the GCD of 25, 399, 245, 616?

GCD of 25, 399, 245, 616 is 1

2. Where do I get the detailed procedure to find GCD of 25, 399, 245, 616?

You can find a detailed procedure to find GCD of 25, 399, 245, 616 on our page.

3. How to find GCD of 25, 399, 245, 616 on a calculator?

You can find the GCD of 25, 399, 245, 616 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.