GCD of 485, 645, 63, 490 Calculator

Given Input numbers are 485, 645, 63, 490

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

Divisors of 485

List of positive integer divisors of 485 that divides 485 without a remainder.

1, 5, 97, 485

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

1, 3, 5, 15, 43, 129, 215, 645

Divisors of 63

List of positive integer divisors of 63 that divides 63 without a remainder.

1, 3, 7, 9, 21, 63

Divisors of 490

List of positive integer divisors of 490 that divides 490 without a remainder.

1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490

Greatest Common Divisior

We found the divisors of 485, 645, 63, 490 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 485, 645, 63, 490 is 1.

Therefore, GCD of numbers 485, 645, 63, 490 is 1

Given Input Data is 485, 645, 63, 490

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

Prime Factorization of 485 is 5 x 97

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 63 is 3 x 3 x 7

Prime Factorization of 490 is 2 x 5 x 7 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(485, 645) = 62565

GCD(485, 645) = ( 485 x 645 ) / 62565

GCD(485, 645) = 312825 / 62565

GCD(485, 645) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 63

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

LCM(5, 63) = 315

GCD(5, 63) = ( 5 x 63 ) / 315

GCD(5, 63) = 315 / 315

GCD(5, 63) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 490

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

LCM(1, 490) = 490

GCD(1, 490) = ( 1 x 490 ) / 490

GCD(1, 490) = 490 / 490

GCD(1, 490) = 1

GCD of 485, 645, 63, 490 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 361, 979, 13, 532
• GCD of 217, 985, 17, 986
• GCD of 672, 774, 83, 445
• GCD of 646, 631, 18, 820
• GCD of 195, 833, 28, 509

1. What is the GCD of 485, 645, 63, 490?

GCD of 485, 645, 63, 490 is 1

2. Where do I get the detailed procedure to find GCD of 485, 645, 63, 490?

You can find a detailed procedure to find GCD of 485, 645, 63, 490 on our page.

3. How to find GCD of 485, 645, 63, 490 on a calculator?

You can find the GCD of 485, 645, 63, 490 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.