GCD of 212, 780, 81, 658 Calculator

Given Input numbers are 212, 780, 81, 658

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

Divisors of 212

List of positive integer divisors of 212 that divides 212 without a remainder.

1, 2, 4, 53, 106, 212

Divisors of 780

List of positive integer divisors of 780 that divides 780 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 81

List of positive integer divisors of 81 that divides 81 without a remainder.

1, 3, 9, 27, 81

Divisors of 658

List of positive integer divisors of 658 that divides 658 without a remainder.

1, 2, 7, 14, 47, 94, 329, 658

Greatest Common Divisior

We found the divisors of 212, 780, 81, 658 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 212, 780, 81, 658 is 1.

Therefore, GCD of numbers 212, 780, 81, 658 is 1

Given Input Data is 212, 780, 81, 658

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

Prime Factorization of 212 is 2 x 2 x 53

Prime Factorization of 780 is 2 x 2 x 3 x 5 x 13

Prime Factorization of 81 is 3 x 3 x 3 x 3

Prime Factorization of 658 is 2 x 7 x 47

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(212, 780) = 41340

GCD(212, 780) = ( 212 x 780 ) / 41340

GCD(212, 780) = 165360 / 41340

GCD(212, 780) = 4

Step2:

Here we consider the GCD from the above i.e. 4 as first number and the next as 81

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

LCM(4, 81) = 324

GCD(4, 81) = ( 4 x 81 ) / 324

GCD(4, 81) = 324 / 324

GCD(4, 81) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 658

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

LCM(1, 658) = 658

GCD(1, 658) = ( 1 x 658 ) / 658

GCD(1, 658) = 658 / 658

GCD(1, 658) = 1

GCD of 212, 780, 81, 658 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 216, 114, 59, 529
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• GCD of 745, 961, 36, 519
• GCD of 598, 800, 28, 106
• GCD of 152, 487, 31, 555

1. What is the GCD of 212, 780, 81, 658?

GCD of 212, 780, 81, 658 is 1

2. Where do I get the detailed procedure to find GCD of 212, 780, 81, 658?

You can find a detailed procedure to find GCD of 212, 780, 81, 658 on our page.

3. How to find GCD of 212, 780, 81, 658 on a calculator?

You can find the GCD of 212, 780, 81, 658 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.